Because he goes off the rails at appropriate times. I know the media likes to portray him as a diva, but he went off the rails 1. AFC Conference Championship game 2. 13 seconds loss. 3. Bengals loss.
All appropriate times to go crazy trying to rally people during the game, and flying off the handle that we dropped the game afterwards. I wish we had more "divas" like Diggs.
Edit: And no, I didn't forget the stupid non-story from a random 3 day minicamp in which he misses the first day, attends the 2nd, and the team cancels the 3rd because it is such a damn important minicamp.