I say this because many of the “mythical” stories (Creation, the angels/human hybrids, the flood) all exist in other ancient cultures, and there’s no reason God could not have said “this is something you believe to be true, but I’m going to change it so you can know who I am.”
Paul did this same thing with shrine of the “unknown God” of the people of Athens in Acts 17.
God is perfectly capable of taking our myths and converting them into stories about Himself, and quite frankly, this is far more interesting to me than an “accurate” story that lacks a theological message.
There’s something special about taking our misbeliefs about the world, and having God show us that he is greater than the stories we believe.
“You believe monsters? Well God beat all those monsters!”
God uses our stories to reveal himself. That seems more personal… and more powerful.