The Star Wars sequels are just so depressing and that will make everything about its expanxed universe depressing too... You know that instead of writing fun space aventures some poor bastard will have to write about Leia and Han's Divorce or how teen Kylo Ren murdered all Luke's Jedi Order and the Republic fell (again)... That's just a downer...
Writing in the prequel era: Jedi aventures, political intrigue, the clone wars
Writing in the original trilogy era: Forming the Rebellion, fighting against the Empire, smugglers and jedi survivors
Writing in the Sequel era: May Divorce Be With You