"Stake my reputation on?" hahaha! That's funny.You are sounding mighty serious MA..... easy big fella.
You see the problem is with how you define the word omnipotent. How much sense does "able to do anything" make? Not much if you look at the omnipotence paradox. As a matter of fact this definition "able to do anything" is nonsense. Think of the saying an irresistable force meets an immovable object. If a force is irresistable then there is no such thing as an immovable object. If there is an immovable object then there is no irresistable force. The two cannot exist at the same time because of the contradiction so this statement is nonsense.
"Able to do anything?" Can God create a rock so big even He can't lift it? This is an example that shows how the perception of omnipotence by some people is nonsense because of the paradox it creates.
My view of omnipotence is: The ability to do anything WITHIN REASON. This addition to your definition makes the word omnipotent logical.
Using your illogical defintion of omnipotence your and GIA's premise seems logical but really it is nonsense. If you read the bible it seems that God wants humans to choose to love and trust him, hence our free will. If God created us to love Him from the start we wouldn't have free will to choose and we would be nothing but puppets. Same goes for GIA's premise. If God put us under a spell to love Him then heaven would be nothing but a puppet show. What would be the point of that? But since we have free will to choose there will be some who choose not to love God. According to the bible hell was created as a place of everlasting punishment for Satan and his demons. It seems to me the logical place for those who choose not to love God would be hell.
So you see what GIA is proposing may not even be possible to do. It isn't reasonable to create free willed beings for the purpose of choosing to love/not love God and allowing everyone to be with God in the end regardless of what choice they make. Is God omnipotent? First you have to examine how one defines the word "omnipotent" because some definitions are nonsense. If omnipotent means: the ability to do anything within reason, then sure God is omnipotent. Is GIA's premise possible? Not if God created humans with free will.