The point I inferred from the comment was that "it is OK for the article to state that biological differences in men and women lead to certain pre-dispositions

The point I inferred from the comment was that "it is OK for the article to state that biological differences in men and women lead to certain pre-dispositions in how friendships are formed, but it was not OK to suggest that biological differences might influence suitability/pre-disposition for certain kinds of work." I'm not backing that claim or taking a stance on it, but that is what I understood the source of the irony to be.