what is FAK?

I'd do the ABA thing too. Are you a member? Could you take her along to a meeting? Normalising breastfeeding and normal baby habits would be very helpful - as you say, she has somewhat unrealistic expectations.
It sounds like she wants advice & help, so if she asks, just tell her what you know to be true (to the best of your knowledge). And refer her to the ABA, an LC, books etc if she wants more info/expertise. She might even benefit from debreifing her first experience with an LC or ABA counsellor. She may discover that she was actually doing much better than she thought.