Hold it. "Wrote him into a corner"? If she has evidence it's because something actually happened. In which case he wrote himself into a corner. And he'll look like a shitty person because he was a shitty person. Don't be foisting that on her. Yes, that's often why people don't attempt to go to the authorities. Just because something is technically legal doesn't make it right. And in those situations simply letting people know is the better course of action. You seem to be taking issue with the fact that she was willing to take coercive shitty behaviour public. Why? If she has evidence, what's the problem?
Now if she's not got anything (since I know someone will bring that up), then when he denies it, she'll have no recourse and she'll look foolish. I'm reminded of what happened to Sam Seder at MSNBC. Mike Cernovich was shown to be maliciously attempting to take a sarcastic tweet out of context in order to make him look bad. Sam was initially fired (employers are one group that need to be patient) but was brought back with an apology. Cernovich is now even more irrelevant than before.