He goes way to deep. I'm not a fan of the "All you haters do is nitpick" Stuff, but if you're going to go seriously this deep, analyze every single scene for a few minutes, you're going to find problem literally everywhere, Most movies are fiction, most movies don't follow physical time, for that alone pretty much every movie is going to have scenes that can be picked apart for hours like Mauler does. His saving grace is he does this only to bad movies, so because the movie is already bad you assume his insane level of nitpick and observation is actually the reason behind why the movie is bad, and that it is all deserved, when it really isn't. The primary issues with the last jedi are much more overall then that, and can quite easily and accurately be summised within a 15 minute video if that, Mauler is just a living IMDB mistakes page.
What he does is no better then What a cow, The mysterious MrEnter does to cartoons, Mauler just presents himself much better and has the benefit of only applying this method to films that are genuinely bad, when he could just as easily do it to, say Pulp Fiction, or any list of great films.