Her claim was that "Man Box" was (1) accurate and (2) not demeaning.

Anyway, the comment in question wasn't angry fragility; it was someone saying how it was hard to feel motivated with all the negative comments and attitudes towards men. If you don't think that is a problem, then either you live in the Man Box (rather: on the traditional hegemonic masculinity end of the axis defined by the Equimundo study), or you think that all the women complaining about how academia can treat them dismissively are expressing "the most tired of emotions".