Rondo put his forearm into Kardashian's chest. Kardashian grabbed Rondo by the back of the neck and the players tumbled backwards. It looked to me like Rondo, besides the initial forearm, was the victim here. When a guy almost a foot taller than you has you by the back of the neck, the common reaction is to struggle to get away from him.
I'll be very disappointed if Rondo is suspended. No punches were thrown. If they're going to suspend players when they tussle and end up in the stands, they have to suspend them EVERY time. Lamar Odom was suspended one game for a flagrant foul when he body blocked Ray Allen into the stands (nice job, LO, please do it again), but he wasn't suspended for going into the stands.
No punches, no fight, no suspension. Let's stop the wussification of American sports right here and now.