Well, the Cavil rumors on The Witcher only started after he quit the show. So I would only take that with a grain of salt. Probably just the creators trying to save face. As far as Cavill trying to roughshod over production, he was the only good part and they admit he rewrote some of the most memorable scenes. If you want to see how the series is run without Cavil, try watching Blood Origins. It is complete rubbish. So yeah, Cavil was the only saving grace for the show. Rarely do you ever see a true fan run a series. So I will give it a whirl and see what happens.