Selfish penalty but that is rarely called. Players chirp at linesmen all the time.
There was nothing selfish about that. Kuzy wasn't even yelling at him, he gave him a quick piece of mind while completely and utterly complying with what the linesman wanted him to do. He was waved out of the FO circle, didn't like it or the continuation of some bad calls and politely skated to his spot while saying something to the linesman or calling it bullshit.
That shouldn't be a call. Nothing selfish about it. Refs want us to lose this game, no other explanation the calls from them have been rather trash tier tonight.