Both Perk techs and the technical on Rondo were all among the worst ten calls I think I've ever seen in that regard.
I can't believe I am saying this, but I have to defend the Rondo technical. There was a clear warning right before that, where Crawford said "he's been warned" pointing at Rondo. Then Rondo had to get one more thing in there, so he was T'ed up. That I am fine with. If the refs set the line that clearly, and the player knowingly steps over it, then they deserve a technical.
But the Perk technical on the other hand was probably the worst I have ever seen, given the circumstances. He was walking away! If you cannot allow players to get themselves under control by walking away, then there is something very wrong.
Both Mark Jackson, a former player, and Jeff Van Gundy, a former coach, disagree with you, as do I. They both discussed and then with video clearly showed that Rondo was talking to the other referee once time was called. Rondo may not be allowed to calmly talk to the ref during the break but that is clearly the least enforced rule in the NBA handbook. There is, however, no rule that says he has to go and participate in his team's huddle.
Crawford ordered Rondo to stop talking and to go to his bench, which I am pretty sure is beyond his authority. Rondo was calmly discussing the last call with a completely different person when Crawford interjected himself into the situation and forced Rondo to the sideline when Rondo is not obligated to do so. When Rondo said something, he was instantly T'ed up.
It's pretty clear Crawford was on a power trip and had an agenda. It was a pathetic display of officials trying to become the game instead of overseeing the game.