"This crap about needing a man to carry someone off the battlefield is complete silliness. " As a former medic, I'd like to suggest that until DOD delivers adequate Field Evacuation Medical And Lifesaving Extraction Suction devices (FEMALES), you're wrong.
I don't want to suggest that women aren't frequently capable of great courage (I've got 3 very gutsy girls of my own). My point is that it isn't worth it to reduce proper response level from 80% effective to 70% effective, because "most of the time" a woman will do as well as a man. The fact is, on average, women are significantly slower and weaker than men. Until the day comes that speed of movement and physical strength on the battlefield no longer matter, it's best to keep the women to the rear.
It has nothing to do with whether they are courageous. If they can do the PT minimums fine, otherwise, send 'em back to the gym.