What was said in the locker room during the altercation between Draymond and KD was reportedely over the line and has factored into KD's free agency decision, possibly even ensuring his departure. Even before the beef, I believed that this is KD's last year in Golden State. -
Think about it. He's already won 2 rings and likely will win a 3rd this year, he has proved he can step up in the Finals, and has shown he can be a team player. The only thing he has left to prove is if he can win a title on his own, or as the clear-cut best player on his team. For him to really solidify his legacy, and to eventually overtake LeBron as the best player in the league, it will be best for him to leave GS.