I don't think she's putting her foot in it at all to be honest, she's being supportive of a friend. It's nice of her. But I don't think we're allowed to discuss that subject here.
She is basically stating she thinks the accuser is a liar, which is a disgrace as no one KNOWS, least of all that dumbo. And it is hard enough for victims of abuse to come forward without people in the public eye making comments like this...reinforcing fears victims have of being considered liars. This is despite official figures putting false allegations at around a mere 3%, which is on a par with allegations of other crimes, yet for some reason people always doubt those who claim they have been abused.
She should shut up. There are other ways to support her friend, like doing it in private for one!