I haven't read much yet. My guess is that the hate came from people like me who forgot that the target audience is kids (as it should be).
I was looking at it through the wrong lens. I think I kind of got tricked by how much I felt The Force Awakens was aimed at me. I think that was a special one last hurrah for my generation. It was very special. But I knew it was a transition. Somehow I let myself forget.