Besides, nobody denies the existence of biological differences. It's pretty obvious that women tend to have breasts and men tend not to. What's being criticised is:
- Misinterpreting culturally-enforced differences as biological and therefore fixed. Hair length, for example, could be misinterpreted as a difference between the sexes if any aliens did a quantitative study without ever noticing the barbers. Job choices could very well be similar, except the process how they are culturally reinforced are less obvious.
- Making decisions affecting individuals based on group differences (biological, culturally, or imagined): Even if women are 2% at picking stocks, using that information only to hire Alice and not Bob will lead to the wrong decision in 45% of cases because the differences between individuals swamp the group averages.
From the study the article is quoting: > in nearly all countries, more girls appeared capable of college-level STEM study than had enrolled. Paradoxically, the sex differences in the magnitude of relative academic strengths and pursuit of STEM degrees rose with increases in national gender equality
This is only paradoxical if you're presuming men and women are NOT attracted to different things. Experiments with little kids before they can even process coherent though, and across cultures, have produced quite conclusive statistical evidence that there's innate gender differences (preferences of color, of soft vs spinney/mechanical things, etc) that don't fit the 'evil men suppressing women through artificial social constraints' narrative.