Thing is that the Gods dwell in sub-realities where reality conforms to desire. The things in those realities are harvested from memories of the real world.
Why do you think so?
I can propose another explanation. The Gods, being intrinsically connected with Men and anthropomorphic, conform to cultural reality. Or some mainly subconscious rendering of it. Their realms are shaped by all Men throughout history simultaneously, and their connection to souls in this framework is ever-present, i.e. they are connected with the entirety of Mankind, which in turn creates the Gods the way the are. So the Gods are what Men imagine nature and life to be, only real and affirming their existence.
But there are other ways to think about it.
Does the Celmoman prophecy seem like it was delivered by someone with Alzhiemers?
Here, I fear, we can have it both ways, and also every way in between.