That hit changed the game. After that, the entire team's energy went way up, and half the team started hitting everything in sight. It indirectly led to a goal too, I think. About 30 seconds later, when Daniel Winnik came charging in straight at the Colorado defender at full speed, the guy crapped his pants and flipped the puck straight to Lupul for the tying goal.
THAT's the kind of toughness you want, not a couple of lumbering punchers on the fourth line.
EDIT: also, I was more than mildly annoyed that Ray Ferraro and Gord Miller kept talking for the rest of the game about the great hit Clarkson laid on Hejda. idiots.