Yeah, I think that's one of the more frustrating parts of this. My female friends make much more crude penis/anatomy jokes. It's almost like she's saying "talking about the penis around women is inappropriate", which to me is more sexist than anything. I think her real gripe was that they were being crude/unprofessional/immature, but she decided to take it in the sexist route for some reason.
you make a good point, he wasn't being sexist at all, in reality she was kinda the actual sexist one saying hey because i'm female, you can't say that.