Well, I don't agree with Dennett about everything (nor do I agree with anyone about everything). But that's not really relevant here because I don't argue as Dennett does, dismissing religion just by explaining away its evolutionary origin. That origin happens to be relevant to this particular theistic argument about the idea of God. But the fact is I'm addressing that argument as well as a bunch of others in this series on KT.'s apologetics So I am addressing religion's content.
What's relevant from Dennett, I think, is that one point about how we likely first came to think there are invisible friends and enemies: we overextended our intentional stance. That's a plausible explanation, so it competes with theistic ones.