Why would she expose herself to libel laws? Why would she risk her career? Is she not capable of describing her experience and be seen as a witness to her own treatment?
I have no problem with describing one's alleged experience. I take issue with treating it as the truth, despite providing no evidence. This is all unsubstantiated hearsay.
I guess some of it would be hearsay, as some of her story involves what other engineers were telling her, but yeah, this is firsthand testimony, no doubt with plenty of screenshots/emails/etc to document.