This is a good channel indeed. Fan or not (who's not a fan of MK?), his research team is excellent. Mistakes usually come from "do it all" channels, which need to upload stuff for the sake of uploading, brushing through the facts, and basically only reading Wikipedia beforehand. With that said, it's hard to please a diehard fan because he will always find some mistakes. So in an ideal situation, I would research the topic with the help of some fans, or be a fan in the first place.