So coach is indicating that Kassian fighting amped the group. Drew them more into the game. I don't disagree. In the exchange its pretty clear Kass was initially trying to defer on the fight. I imagine he reminded that he had just had facial surgery. But he relented, and part of that is that when a young enforcer comes to you part of the code is that they need it, they need it to stay in the lineup, and to be seen as something. So Kass did himself and his opponent a favor. Just like some tough would have done for Kass a dozen years ago.
Kass was rewarded by being up on the top line, and wasn't at all out of place, and the line scored 2 goals after the switch was made.
Kass is somebody that can play well with either Connor or Leon and brings a required element in some games and plays better when elevated.
But that Kass was willing to break his face again for the team is indisputable.