The fall, proper order and restoration

Warning: This is a speculative post based on scriptures but interpretations solely based on stisa-doctrine. At least, I know of no official statement from church leaders on this.

I have reflected on the conflicting commandments in the Garden of Eden: Don't partake of the fruit of the tree of life and multiply and replenish the earth. Why did God do it that way? Why not just create man mortal and fallen and provide a Savior? Then they wouldn't have to break a commandment to fulfill another one.

I think Alma-2 might have an answer. In Alma 41 he talks about the concept of restoration. It has nothing to do with the restoration of the church, priesthood or gospel truths through the prophet Joseph Smith. He uses it as a general term to describe things being brought back to their "proper order". This restoration is "requisite with the justice of God", he says (Alma 41:2). Since God is just, everything is brought back to its proper order. Alma 41:13

the meaning of the word restoration is to bring back again evil for evil, or carnal for carnal, or devilish for devilish—good for that which is good; righteous for that which is righteous; just for that which is just; merciful for that which is merciful.

Alma spends most of this chapter explaining that what we do (send out) will eventually return to us. That is in line with the "plan of restoration" (Alma 41:2), the restroration of our works or life choices. But in the beginning of the chapter, he also talks about a restoration of the body and spirit. Alma 41:4

Therefore, all things shall be restored to their proper order, every thing to its natural frame—mortality raised to immortality, corruption to incorruption

Since God originally created man immortal, this is the "proper order". Thus it is "requisite with the justice of God" that body and spirit will be restored to immortality. If God had originally created man mortal, that would have been the proper order and immortality could not have been given unconditionally. At least that is what I think. In Alma 42:12, Alma makes a point of death being something "man had brought upon himself". I think it had to be that way.

Because of this "plan of restoration" (Alma 41:2) it makes sense that immortality is unconditional and eternal life (exaltation) is not. It's not my fault that Adam ruined the proper order so according to God's justice I get immortality for free. But I am responsible for my actions and some of them will inevitably be bad. So since what I send out will be returned to me and restored, I need to actively apply the atonement to wipe away the bad part before it returns to me again.