I was trying to explain the Dark saber at the end of The Mandalorian to my brother (who though it was some kind of Sith thing) and he said "great now I have to be a Star Wars 'nerd' to enjoy anything now?". If you have to go to the Star Wars Visual Dictionary to understand the movie then it really may not appeal to the "masses" as much. I make the comment that there are more Batman fans that have never read a comic than those that have. The majority of Star Wars movie goers only watch the movies and that is it so I think that the stories in the movies should be contained in them self.