Because he makes $65,000 in the AHL and is trying to make the big club where he will see a major raise.
Not sure dropping the gloves and holding his own would have impressed the Habs. Now that he is injured he is set back.
Tough position, I think he wants to show to management that he is a team player and stands up for them.
His dad suffered knocks on the chin like that too in his day. It is good to have a dad that has been there before to keep your confidence up.