Even if he turned in a grimdark story, if that isn't what the bosses wanted, why would they keep him? If I tell you I want an uplifting hopeful story and you give me a grim depressing one, you literally did not do what I asked you for.
The Anti-Kennedy Star Wars Youtube is so toxic that I can't even watch Star Wars stuff on Youtube anymore. They have literally populated so much that even the people not in the camp get overwhelmed by the hate. They get entertainment news stories to cover their "stories" they made up out of nothing as if they are actually based on facts.
Also, the toy thing ... even if the article said so. How is that a bad thing? Star Wars makes a ton of money off toys.