Sometimes the best music comes out of Inner turmoil, disagreements and being pushed.
Funny thing about this statement. While there are certain examples where being pushed to the max can yield some good honest music, too much inner turmoil could lead to crap music.
I believe Metallica back in say early 2000s had a lot of inner conflict regarding stuff like going into rehab, a bassist leaving over the disagreement regarding side projects or not, and them leading the charge in the Napster battle. I guess with all of this problems happening to them at the time, they had enough ammunition to rise above it and release a tremendous album, but the result ended up being St. Anger, a very polarizing album at best.
For me, a good album comes from whether or not they had a great time crafting the album knowing they did everything they could to make it the best it can be to satisfy their musical pleasures. If DT look back years from now and still believe that The Astonishing album was among their greatest accomplishment of music they've done, cool. I mean I wouldn't want them to look on years later after an album was released and reflect back and state that they had a miserable time creating said album, because they were unreasonably pushed around too much and the enthusiasm wasn't just there, and that they didn't believe in the songs they crafted. If they cannot get behind the new music they crafted, would the fans can get behind it?