Earlier quoted context omitted.
Did you not get the memo? Gender is purely a social construct. It has no biological underpinning. One can identify as any gender they feel. And then they are that gender. Thus any "differences" you may think you perceive between genders are not real. They are purely cosmetic.
Did you not get the memo? All social constructs are biological. All behaviour has a biological underpinning, how could it be otherwise?
What I think this study shows (and its not the first) is that it debunks the notion that discrimination is the only reason for any differences in gender representation. If a particular field does not have a 50/50 gender split, then that must be wholly explainable by discrimination. This study shows that this is not the case. There is a component of the unequal split that is based on personal preference. And that personal preference has a biological component. This idea is taboo.