It seems weird that you would use an age group of 8-22. Afaik both sexes brains continue to develop into the late 20s, so to extrapolate the aforementioned age group to the entirety of humanity seems premature. This limitation isn't directly addressed in the article.
My boss who is a mother of three once told me they compared brain scans of women vs men when hearing a baby cry. She mentioned that the women had a certain part of their brain activated (I think the concern part of the brain) vs the men who didn’t have anything really activated. So yeah, there is some instinct hardwired into brains of different sexes.
no shit Sherlock??
studies add value regardless of whether you think they follow conventional wisdom or not. The burden of proof is on science to prove something, not just make common assumptions about it.