In the 70s, when I was attempting to construct a postulate to explain the persistance of homosexuality and the instinct of belonging to the opposite gender, I suggsted that, in feral times, people with varying sexual and gender needs were not just tolerated, but paticipated within the tribal setup.
I also attempted to suggest some important roles that people in these situations could have played.
I didn't then nor now, have any substantive evidence of course. It was all conjecture, based upon the observation of the persistance of homosexuality and transgender. But this find may be an intreguing indicator.
Or perhaps not.