For this particular question, it's hard for me to see that there's any real mystery involved. The push for more gender equality in traditionally male professions only shows up for professions associated with high status and/or high income (hence, STEM fields and upper management get lots of attention).

I have seen no similarly strong push to get women involved in (say) garbage collection, which is also traditionally male. Yes, equality there would be great, too, but that inequality isn't as big a factor in preventing women from an equal share of power and influence in society.

Meanwhile, there are efforts to get men involved in higher-status traditionally female jobs like nursing. But there simply aren't many high-status/high-paying jobs that are traditionally female... which is pretty much the point. (Looking at the article, I'm surprised to see psychologists/therapists presented as predominantly female. When I hear "psychologist", the first image that comes to mind is Freud.)