I don’t care that it’s part of a larger universe, I care that unless you followed the exact right part of that universe it makes zero sense, and that’s the case for a large majority of the people that watched this movie I’d bet.
Like I said earlier, Maul being resurrected in TCW makes zero sense too, so seeing the show only serves to let you have the “what the hell” reaction outside the theater. Saying they’re expecting you to have seen the cartoon isn’t really true.