I read the column and watched the video. I'm not going to defend Cousins' use of profanity or his bullying, but I do think it's silly that some people are clamoring about censorship without, apparently, realizing that Cousins is also exercising one of his rights—freedom of speech.
He's well within his rights to be upset at someone's coverage of him, even if you think he shouldn't be upset; and he's well within his rights to say (or not say) what he wants to say (or not say). The NBA's rules don't specify the details of a player's media "availability," they say only that he has to be available. If he's there in the locker room (which he has been), that fulfills his requirements. If certain people want him to be forced to give more (which is itself an ethics violation, in my opinion), it would have to be done through the collective bargaining process.
And yes, I still want him on the Celtics.