I was part of my university's hiring process for cs professors a few times. Half the time there wasn't a single female applicant. If there was a female applicant, based on the objective measures considered (papers, grants, teaching awards etc) the female applicant always landed in the lower third, the ones that get sorted out quickly. Needless to say, I haven't witnessed a woman being hired, it just never appeared as the sensible choice.

Hiring women is really hard if the hiring pool is too one-sided.