I just actually finished this book, not 10 minutes ago. My overarching TL;DR summary of it, in one sentence is this: For being an international lawyer, she's pretty naive.
We all know Facebook is a morally bankrupt circus, that's been well known for quite some time. The Social Network taught us that he's a pretty selfish terrible person (plus a weirdo). That movie came out in like, what, 2010? If she thought she could single handedly change this, which she pretty clearly does, the conclusions already written that it'll be a leopards ate my face moment.
I'm glad she shared her story, no it's not fair, and I hope it's brought her some peace. But I have to be honest that it was a slog getting through that book.