Any self-respecting book reader is out at this point.So D&B were tied to the awful 4th and 5th book which led to the obvious dip in quality in season 4 and 5. Now they only need to comply with an outline. We'll see how talented they are now.
It'll be nice not to read book readers complaining about how it was in the book. They'll still complain about things like spoiling it for them, but that's easier to digest.