The aspect where I posit how they have bellybuttons.
I never claimed they gained intelligence, only they they became differentiated from the wider population. What amount of differentiation is not specified.
Not claiming this is evolution. Far from it, that would happen on a much longer timescale and not affect only 2 individuals. You're focusing on the wrong aspect of my theory.
Humanoids already existed (think slightly more advanced Neanderthal types). Adam and Eve were both of these, but they were changed (flash of inspiration, touch of God, random mutation, take your pick) effectively elevated them above that level. (God evolved his Pokemon. LOL) So, while they were "created" as many and woman, they had a standard mammalian birth, and thus each have a bellybutton.
Just a hypothesis, nothing more. Do with it as you will.
But boiling spoon pot water drip pot spoon water boiling???