I think I see what you're saying. It's a God-of-the-gaps problem. The real mystery isn't "God" but consciousness. God is just a reification.

I plan to write an article soon on a related hypothesis, which is that the referents of all theological contents hide in plain sight. For instance, heaven and hell are just the material results of the drastic economic inequality that's been a staple of human civilization. The gods are aristocrats, and so on.