Note that evolutionary psychology, which theorizes that human behavior is genetic and controlled by largely genetic forces, is highly controversial in of itself for being excessively reductionist and prescriptivist in its research. I would recommend reading a few of the outlined common criticisms and then looking at the paper with more context as to what it may be exploring here. A simple summary of some things:
https://en.m.wikipedia.org/wiki/Criticism_of_evolutionary_ps...