I think using the 'dude just wants to win' is a poor excuse for his actions. His stats and skill level have decrease too much to deal with the level of diva that he is. He had his time, he was fun to watch for those few years but his time is gone now. He never tried to become a better route runner, he had the size and ability to become the next Fitz or Boldin, but never worked any harder than he had to so he could get on that level.
Plenty of NFL teams could use a WR like him and when no one takes a shot, that's enough red flag for me. With a QB like Rodgers where he expects you to run your routes and trust you...the last thing they need is a guy who demands the ball but doesn't put in the work. Rodgers already seems to not throw the ball to anyone he doesn't trust.
When Diggs scored yesterday and he carelessly took off his helmet and started yelling, it reminded me of something Dez would do. Strutting around like they just won the game. It's diva stuff like that that will add up and cause more issues than anything.