The main bitterness is pretty clearly directed at Google's handling of internal sexism and sexual misconduct, culminating at what seems to be pretty direct (but underhanded) retaliation at the organizers of the walkout during a time when they gathered sustained internal and external publicity, leading to her immediate departure. Are you claiming the real spark of that conflict was her "being bitter at the people around her due to being unable to maintain relevancy" and not any real convictions she held regarding the known misconduct at the company? Seems like a dubious accusation to me in that case.