As you might expect, folks posting comments to this editorial decried this position as unfair to men. What I think is very interesting (ironic, even?) about the "proportionality is unfair to men" argument is that the people who came up with proportionality in the first place are the very people who decry it now: advocates for men's sports. Back in the 1970s, when OCR was coming up with the implementing regulations for Title IX, men's sports advocates favored proportionality because at that time, women constituted a 40-or-so percent minority of the college student population. OCR agreed, saying, essentially: You can comply with Title IX if you give everyone the same rate of opportunity to participate. You can give a majority of the opportunities to the population that's a majority on campus.
[i]n the short term, if women make up a majority of students, they deserve a majority of athletic slots.
Interestingly, proportionality only became objectionably and "unfair" when women attained the same majority status on campus that men had back then.