I think this reflects very poorly on Westbrook and OKC, and has little to no effect on Perkins.
Westbrook didn't leave the playoffs smelling like roses, and he's supposed to be their second best player. He was outplayed by Harden as well as Durant, and was benched late in a playoff game.
Perkins' play wasn't very good down the stretch, but he was injured, and he isn't half as talented as Westbrook. saying Perkins should be ashamed of his play and should not have attacked Westbrook is like saying Kurt Thomas should be ashamed of his play, and shouldn't criticize Derrick Rose.
On top of that, Perkins went after Westbrook privately, within the circle of the team. It obviously shook Westbrook, who tattled to the team, and someone with the team tattled to the press, which was utterly idiotic. If they thought Perkins was surly before, just wait til someone starts telling him the team is playing politics games through the press. Big fella ain't gonna like that.