Especially since we have absolutely nothing to go on, in this case, except the word of one disgruntled former employee.
Maybe it's all true, maybe it's totally made up, maybe it's basically true but exaggerated and missing important information. We don't know, but plenty of people are happy to pile on.
Furthermore, she says she has evidence in the form of emails. I'm not suggesting she will, or even should, make them public, but it would be a hell of a gamble to claim publicly to have them if she didn't, as she will need them if she finds herself in court.
Maybe it's all true, maybe it's totally made up, maybe it's basically true but exaggerated and missing important information. We don't know, but plenty of people are happy to pile on.