That seems a reasonable summary, having read the judgment as well.
As a vet, she does sound like a client who is difficult to please and perhaps rather quick to get upset when things are less than perfect. It sounds like the only other clients they’d got rid of were much worse. There are many, many mildly aggravating and difficult clients and very few are told to leave. I strongly suspect the judge has made the right call and that if she had been someone else, that letter wouldn’t have been sent, especially as she was leaving anyway.
It also seemed to me there were various tensions in the practice as well. It reminded me of some of the more toxic places I’ve worked in. The idea of working in a toxic practice with added genderwoo is making me feel happy I’m no longer in practice.