Lucas is an excellent example of a creative mind that has a lot of good AND bad ideas, but doesn't have a reliable filter for separating them sometimes. He seems to work best when collaborating with others having a editorial talent for separating the creative wheat from the chaff, so to speak. At least after the shortcomings with "The Last Jedi" the blame goes elsewhere (and he gets to say "so... it's not as easy making a Star Wars movie as you think, is it?").