When Pakistani monks--who are men--had United Airlines move a female passenger because their cultural beliefs forbade them from sitting next to her on a flight, the media gave voice to the woman, who felt she'd been discriminated. “We can’t discriminate against half the population,” the woman said, “for a belief from another nation.” The woman has demanded that United Airlines apologize to every female on that plane, including United employees, and change their policy. The woman said she was intent on protecting women’s rights. United said it regretted that the woman was unhappy and that it has "zero tolerance" for discrimination. See here
But when Muslim women insist that they can't exercise with men around at Harvard and a lot of other places, the men are often banned from the gym for hours each week. The women find it "awkward" working out in a co-ed gym--it makes them "uncomfortable." The communications director of Harvard's Faculty of Arts and Sciences called it a "reasonable request."
When Muslim men asked for a religious accommodation that, in truth, did not inconvenience a woman at all, the media gives voice to the woman who insists she was discriminated against. When women ask for a religious accommodation that indisputably does cause some inconvenience to men, it's a reasonable request.