This also points, then, to the conclusion having been instinctive. A conclusion that originates at the very beginning of mankind and manages to stand the test of time till today despite all the advances in comprehension.
What conclusion? Surely you are not suggesting that Animism? Many gods, Two gods, three gods, one god (but with an archnemesis), belief in ghosts, slender man, the Jersey Devil, Chupacabra, etc. are "instinctive". All these examples demonstrate a tendency for the human mind to draw conclusions on inference, with incomplete evidence, reinforced through culture. None of these "conclusions" are "instinctive", they are demonstrations of all-to-common flawed decision making.
Many ideas and memes have survived for millennia. Tribalism, racism, sexism, war to name a few. Surely these ideas are not the result of a creator's programming? If so, then hopefully he's changed his mind.