Perhaps, God is the one thing we cannot prove and understand, or control and influence. In this sense, it comes down to can we ever prove and understand or not every thing. If we can, then there is no God.
I guess the AP's think that every thing can be rigged, so there is no God. Instead, I equate God to the absolute, and Devil to (sheer) uncertainty, neither of which can be attained. Stuff we "bow" to whether we know it or not. And, as these things are a part of the universe, we can't outsmart or rig it. Not to say that the universe can't or won't spit out great clues here and there, but that is entirely up to it.