It didn't "destroy" it; it ended it. Beautifully. They will never be able to do that again. Hell, maybe no one will. But there are still amazing stories to tell. They have to stop leaning on the past. Personally, I'm really looking forward to seeing whether or not they nail the fantastic 4 movie. They already crapped on the secret wars imho by casting RDjr. I have zero interest as of now. Maybe that will change if my confidence in their ability to tell a new story grows