Some people feel good when someone else appears stupider. They'd like to think that they would be smarter in the same situation, and mocking the weak is deeply ingrained in our collective psyche. Considering all the stories of hackers caught for poor opsec hygiene, as well as the perpetrator of this case who was tricked into clicking a malware link himself, and the fact that this is a very long and extremely targeted ops, I'm not so sure such confidence is warranted.

And she's a woman who got a fortune from a divorce. That probably triggered some as well.