I see nothing wrong with it at all. I mean I cuss like a sailor and my future WnK kids will probably get in trouble a lot at school for their sailor trash mouths. Our society today is more comfortable than ever with words like eff, crap, Bitch, etc. If you want proof, watch a television show from 1990 and a television show now. They can get away with a lot.
As far as the KU fans on FB getting bent out of shape....it's laughable. Pot meet kettle amirite?