I don't think Luke needed to die in Vector Prime, but it does bother me that the Big Three are still hanging around in their 60s and 70s at the expense of their children. Two out of three of Han and Leia's children either going dark, dying or both? Seriously? One I could accept, two was over the top. I also agree that it's silly to think that people wouldn't buy any more books taking place post Luke's death. It is possible to focus on other characters and have a good Star Wars story.