Yeah, it's a great video, and I agree with your comments on it from your above post. I think it illustrates not only that he can be a good teacher and not a douche, but it shows ARMA's particular attention to biomechanics and practical technique. A lot of their videos are equally as informative and offer some unique perspective.
And yes, that's an important point that liking JC and other HEMA instructors is not a mutually exclusive proposition. You don't have to pick sides. People want it to be good vs evil, but it's just different perspectives. Learn from all of them!