How is the demiurge taking utility from humans if humans ending up in heaven is the optimal outcome for both humans and diety?

> Argument?

It’s an argument that a diety can both be omnipotent and benevolent if humans don’t know true pain or pleasure in their earthly lives. After all, both earthly pleasure and pain are temporary, so if you can conceive of eternal happiness it might render earthly suffering negligible in comparison.