its a catch 22. Its alot easier to talk about something that is bad, and point out flaws. Because, you don't need to be an expert to do that. to articulate why something is great, like Arcane, for tv shows, or terraria for games. you have to REALLY understand it. And that takes deep knowledge, and understanding. to the point that, well you should probably be designing games, or making movies/tv shows yourself..
saw a vid today today talking about Concords horrible character design. it had some ok points, but compared to overwatch and Tf2. it was way too nice to Overwatch.. as even that poor level of character design seems great compared to Concord..
but here is an example of an older look at TF2 and Overwatch in character design. This guy is pretty knowledgeable and makes great points.
But to make this level of critique, requires an intimate knowledge and understanding of the subject matter, you just can't get quickly. you can't do it for weekly reviews, and in general need a good deal of background knowledge.
Sure, sometimes that lack of actual industry experience, causes the rage critics to make mistakes in their reviews. making games/movies/tv is often a very complicated process, and often things are the way they are due to concessions with reality. $$, schedules, contracts, etc. often not understanding the priorities of production.
there is a balance to watching them. some are 100% more for entertainment in itself, other then a real reviews. some are more objective then others. more knowledgeable then others.