@futurebird It has been forever since I read about that scientist who lived among apes for some years, but I think somewhat was actually said to the effect of what you just said: the apes felt the human was kind of bad at being an ape.
I think you have a good point besides. It's a bit of the uncanny valley effect perhaps. If we were bug beings then we might find our evolutionary similar cousins to be unpleasant and might like apes more.