This world is probation?

Alma 12:21-24 [Book of Mormon]
“What does the scripture mean, which saith that God placed acherubim and a flaming sword on the east of the garden of bEden, lest our first parents should enter and partake of the fruit of the tree of life, and live forever? And thus we see that there was no possible chance that they should live forever.
22 Now Alma said unto him: This is the thing which I was about to explain. Now we see that Adam did afall by the partaking of the forbidden bfruit, according to the word of God; and thus we see, that by his fall, all mankind became a clost and fallen people.
23 And now behold, I say unto you that if it had been possible for Adam to have apartaken of the fruit of the tree of life at that time, there would have been no death, and the word would have been void, making God a liar, for he said: bIf thou eat thou shalt surely die.
24 And we see that adeath comes upon mankind, yea, the death which has been spoken of by Amulek, which is the temporal death; nevertheless there was a space granted unto bman in which he might repent; therefore this life became a cprobationary state; a time to dprepare to meet God; a time to prepare for that endless state which has been spoken of by us, which is after the resurrection of the dead.”
This is the back ground for Mormonism. This world is a state of probation, in which you prepare to meed God. This world is more a test than anything else. Now this isn’t the message of the Bible. But this is the way the explain away original sin. Salvation is something you earn, by being good on probation. So what was the point of Christ’s death? Nothing.