I once tried to work with a nutritionist regarding the increased protein needs of a twin pregnancy. She was pretty much clueless and had all the schooling, licenses and degrees. I knew more from reading two books by experts in the field than what she could provide me with. And by golly those experts sold me a book to read
Funny thing books, people condense their knowledge into them in order to make a living. Just because there is a profit motive doesn't mean it's bad information. (Also doesn't mean buyer shouldn't beware.) Yep the fitness world suggests far more protein than required to minimally sustain life. It's a specialized diet, she's a generalist. Maybe that's where the disconnect has occurred.