I agree, I don’t think that CinemaSins was ever really good, but it definitely got worse over time. His content has been criticized to death and there are some good commentary videos covering the issues with his channel. I will plug CinemaWins as a pretty good “counter” channel. I don’t watch it because I’m not really into that kind of content these days, but the videos that I have seen are worthwhile if you’re looking to fill a similar hole.