Perhaps it is. However, let's be clear, A male, United States Marine, may be 4'10" tall and weigh a scant 96 pounds. How much easier do you think it will be for that marine than a 145 pound woman?
A female Marine by comparison must also stand at least 4'10" tall, but she may weigh as little as 90 pounds.
Although, for the sake of fairness, any woman or man who can carry the weight and walk the walk, let em go. I knew a guy in high school who could bench nearly twice his weight.
Of course, that still doesn't solve the problem of men trying to protect the women in their unit. It's still a distraction. I believe same sex units, men only and women only are the way to go. If we had that, the women could afford a few looser standards. They'd be fighting next to their own.