Unfortunately, Alma 40 omits mention of those who are between the two extremes, so the logical possibility of MMP between death and resurrection for those is not precluded by it. However, D&C 76 appears to fill in that gap with its description of those who inherit the telestial and the terrestrial kingdoms, as well as their qualifying conditions, and therefore MMP is not a justifiable inference from Alma 40, and on its face appears to be incompatible with it, specifically because of verses 11-14.Alma 40
1 Now my son, here is somewhat more I would say unto thee; for I perceive that thy mind is worried concerning the resurrection of the dead.
2 Behold, I say unto you, that there is no resurrection—or, I would say, in other words, that this mortal does not put on immortality, this corruption does not put on incorruption—until after the coming of Christ.
3 Behold, he bringeth to pass the resurrection of the dead. But behold, my son, the resurrection is not yet. Now, I unfold unto you a mystery; nevertheless, there are many mysteries which are kept, that no one knoweth them save God himself. But I show unto you one thing which I have inquired diligently of God that I might know—that is concerning the resurrection.
4 Behold, there is a time appointed that all shall come forth from the dead. Now when this time cometh no one knows; but God knoweth the time which is appointed.
5 Now, whether there shall be one time, or a second time, or a third time, that men shall come forth from the dead, it mattereth not; for God knoweth all these things; and it sufficeth me to know that this is the case—that there is a time appointed that all shall rise from the dead.
6 Now there must needs be a space betwixt the time of death and the time of the resurrection.
7 And now I would inquire what becometh of the souls of men from this time of death to the time appointed for the resurrection?
8 Now whether there is more than one time appointed for men to rise it mattereth not; for all do not die at once, and this mattereth not; all is as one day with God, and time only is measured unto men.
9 Therefore, there is a time appointed unto men that they shall rise from the dead; and there is a space between the time of death and the resurrection. And now, concerning this space of time, what becometh of the souls of men is the thing which I have inquired diligently of the Lord to know; and this is the thing of which I do know.
10 And when the time cometh when all shall rise, then shall they know that God knoweth all the times which are appointed unto man.
11 Now, concerning the state of the soul between death and the resurrection—Behold, it has been made known unto me by an angel, that the spirits of all men, as soon as they are departed from this mortal body, yea, the spirits of all men, whether they be good or evil, are taken home to that God who gave them life.
12 And then shall it come to pass, that the spirits of those who are righteous are received into a state of happiness, which is called paradise, a state of rest, a state of peace, where they shall rest from all their troubles and from all care, and sorrow.
13 And then shall it come to pass, that the spirits of the wicked, yea, who are evil—for behold, they have no part nor portion of the Spirit of the Lord; for behold, they chose evil works rather than good; therefore the spirit of the devil did enter into them, and take possession of their house—and these shall be cast out into outer darkness; there shall be weeping, and wailing, and gnashing of teeth, and this because of their own iniquity, being led captive by the will of the devil.
14 Now this is the state of the souls of the wicked, yea, in darkness, and a state of awful, fearful looking for the fiery indignation of the wrath of God upon them; thus they remain in this state, as well as the righteous in paradise, until the time of their resurrection.
15 Now, there are some that have understood that this state of happiness and this state of misery of the soul, before the resurrection, was a first resurrection. Yea, I admit it may be termed a resurrection, the raising of the spirit or the soul and their consignation to happiness or misery, according to the words which have been spoken.
16 And behold, again it hath been spoken, that there is a first resurrection, a resurrection of all those who have been, or who are, or who shall be, down to the resurrection of Christ from the dead.
17 Now, we do not suppose that this first resurrection, which is spoken of in this manner, can be the resurrection of the souls and their consignation to happiness or misery. Ye cannot suppose that this is what it meaneth.
18 Behold, I say unto you, Nay; but it meaneth the reuniting of the soul with the body, of those from the days of Adam down to the resurrection of Christ.
19 Now, whether the souls and the bodies of those of whom has been spoken shall all be reunited at once, the wicked as well as the righteous, I do not say; let it suffice, that I say that they all come forth; or in other words, their resurrection cometh to pass before the resurrection of those who die after the resurrection of Christ.
20 Now, my son, I do not say that their resurrection cometh at the resurrection of Christ; but behold, I give it as my opinion, that the souls and the bodies are reunited, of the righteous, at the resurrection of Christ, and his ascension into heaven.
21 But whether it be at his resurrection or after, I do not say; but this much I say, that there is a space between death and the resurrection of the body, and a state of the soul in happiness or in misery until the time which is appointed of God that the dead shall come forth, and be reunited, both soul and body, and be brought to stand before God, and be judged according to their works.
22 Yea, this bringeth about the restoration of those things of which has been spoken by the mouths of the prophets.
23 The soul shall be restored to the body, and the body to the soul; yea, and every limb and joint shall be restored to its body; yea, even a hair of the head shall not be lost; but all things shall be restored to their proper and perfect frame.
24 And now, my son, this is the restoration of which has been spoken by the mouths of the prophets—
25 And then shall the righteous shine forth in the kingdom of God.
26 But behold, an awful death cometh upon the wicked; for they die as to things pertaining to things of righteousness; for they are unclean, and no unclean thing can inherit the kingdom of God; but they are cast out, and consigned to partake of the fruits of their labors or their works, which have been evil; and they drink the dregs of a bitter cup.
Resurrection is permanent.Alma 11:45
45 Now, behold, I have spoken unto you concerning the death of the mortal body, and also concerning the resurrection of the mortal body. I say unto you that this mortal body is raised to an immortal body, that is from death, even from the first death unto life, that they can die no more; their spirits uniting with their bodies, never to be divided; thus the whole becoming spiritual and immortal, that they can no more see corruption.
Resurrection is universal.D&C 88
25 And again, verily I say unto you, the earth abideth the law of a celestial kingdom, for it filleth the measure of its creation, and transgresseth not the law—
26 Wherefore, it shall be sanctified; yea, notwithstanding it shall die, it shall be quickened again, and shall abide the power by which it is quickened, and the righteous shall inherit it.
27 For notwithstanding they die, they also shall rise again, a spiritual body.
28 They who are of a celestial spirit shall receive the same body which was a natural body; even ye shall receive your bodies, and your glory shall be that glory by which your bodies are quickened.
29 Ye who are quickened by a portion of the celestial glory shall then receive of the same, even a fulness.
30 And they who are quickened by a portion of the terrestrial glory shall then receive of the same, even a fulness.
31 And also they who are quickened by a portion of the telestial glory shall then receive of the same, even a fulness.
32 And they who remain shall also be quickened; nevertheless, they shall return again to their own place, to enjoy that which they are willing to receive, because they were not willing to enjoy that which they might have received.
33 For what doth it profit a man if a gift is bestowed upon him, and he receive not the gift? Behold, he rejoices not in that which is given unto him, neither rejoices in him who is the giver of the gift.
Now, all of this doesn't mean MMP is false. It may be true. But there is no scriptural warrant for it; its advocates are reduced to arguing that MMP is not necessarily logically incompatible with the scriptures.
Even if it is true, should it be taught?
I would argue that, according to Moroni 7, it perhaps should not be.
A couple of facts need to be kept in mind. Sinners prefer to remain in their sins. Idolaters prefer their idols. Carnal men, without being made aware of their fallen and worthless state, do not repent. People who are satisfied with what they have do not change. MMP seems to persuade men that if they do not repent and come unto Christ in this lifetime, then all may yet be well with them.Moroni 7
15 For behold, my brethren, it is given unto you to judge, that ye may know good from evil; and the way to judge is as plain, that ye may know with a perfect knowledge, as the daylight is from the dark night.
16 For behold, the Spirit of Christ is given to every man, that he may know good from evil; wherefore, I show unto you the way to judge; for every thing which inviteth to do good, and to persuade to believe in Christ, is sent forth by the power and gift of Christ; wherefore ye may know with a perfect knowledge it is of God.
17 But whatsoever thing persuadeth men to do evil, and believe not in Christ, and deny him, and serve not God, then ye may know with a perfect knowledge it is of the devil; for after this manner doth the devil work, for he persuadeth no man to do good, no, not one; neither do his angels; neither do they who subject themselves unto him.
Indeed, it seems to resemble this.
The whole chapter may profitably be considered in the context of this discussion.2 Nephi 28
7 Yea, and there shall be many which shall say: Eat, drink, and be merry, for tomorrow we die; and it shall be well with us.
8 And there shall also be many which shall say: Eat, drink, and be merry; nevertheless, fear God—he will justify in committing a little sin; yea, lie a little, take the advantage of one because of his words, dig a pit for thy neighbor; there is no harm in this; and do all these things, for tomorrow we die; and if it so be that we are guilty, God will beat us with a few stripes, and at last we shall be saved in the kingdom of God.
It appears to me that MMP fails the Moroni 7 smell test (but not completely in that it doesn't necessarily persuade to believe not in Christ, but it does give comfort to them who don't wish to obey).
Lastly, even if it is true, and it has been received by revelation, should it be taught?
The portion of the word of God he grants unto the children of men is, it seems to me, the scriptures. Therefore, as MMP cannot be shown to arise from the scriptures, and it appears contrary to them, and it seems to counter the purpose for which the scriptures are given - which purpose is to persuade men to do good (repent and receive the Holy Ghost and the power of God thereby to do his works) - even if it is true, it had not ought to be taught.Alma 12:9 And now Alma began to expound these things unto him, saying: It is given unto many to know the mysteries of God; nevertheless they are laid under a strict command that they shall not impart only according to the portion of his word which he doth grant unto the children of men, according to the heed and diligence which they give unto him.
Of course, this is just one person's thinking. Each may judge for themselves.
