I would say she is half condoning it: she is gratuitously urging people to accept the occurrence of rape by one's own peers in the military as a fact of life. Eat it, or don't get in there. She pretends to be answering a moral or societal argument but her phrasing of the issue, as she does so, is sliding between the ethical level and loose injunctions about how things work in nature, in the state of things ("What do they expect? Uh, these people are in close contact", "Women /feminists/ want to be both warriors and victims" and so they are screwing up and faking the real issues). The natural (biological) order and its offprint in a stressful situation, ultimately in war, becomes the excuse for saying "that's how it *ought* to be, morally, and if you have issues with that, just piss off, wimp!" That way of equating "the way it happens in nature, or by tradition" and "what is right to happen" is, well, a fixture of social darwinism.
If she had said "people who join the military need to acknowledge that sometimes in combat, soldiers get killed by their own, by friendly fire, and you know you don't argue with your superiors about this, especially not if you want to do your duty or have a career" I think few people would have bought that argument. But it's a fact that soldiers do get killed by friendly fire in the roughness and chaos of combat situations, and because of logistical mistakes. It actually happens in most armies that go to war. The main reason it hasn't happened more often with the US or British armed forces in recent decades (there's been a number of instances in Iraq though) is that the amount of real ground contact on a large scale and heavy exchange of fire with a "battlefield equal" enemy has been almost none.
In both world wars there were many occurrences of infantry units getting mowed down by the cannon of their own side, because of errors in assessment of where the forces were placed or of the angles of guns getting fired. This was regularly getting hushed down of course. There were lots of times, too, when troops were wasted in misguided operations. If there had been more close-up contact and combat betwen equal armies in some recent wars that kind of thing would no doubt still be happening more frequently. But this wouldn't be any kind of excuse, though some colonels and tacticians might like to think it was.