Um… Kenyon? And all the LACs with a 40/60 M/F split? All of them are harder for a white female to gain access to. I certainly agree that the schools will figure it out anyway… but if I were an admissions officer, I would think it gets the recommendation off to a bad start – kind of tin-eared to the purpose of the recommendation. And brings the writer’s judgement into question. But it sounds like you are stuck with it.
It makes me wonder if she is making “unforced errors” in the rest of the document, though. I suspect your apps might benefit by a review by a paid college counselor… and I almost never recommend that.