Eh, take the prophet writer, the one writing about the Winchesters, the one closest in RL to the real Kripke and make him the almighty creator... It works, it makes the pieces fit, I just don't like it.
I personally think the show is getting a bit too angels vs demons, GOD vs SATAN. There's way too much melodrama between the forces and I miss seeing monsters every week.
It made the most sense to me. Since Chuck was a Prophet, you would think at least the arch angel guarding him would know he was actually god. This way, no one knows since God is hiding in plain sight.