Perlini will be fine, because in the pros, he'll have a center that is trying to get him the puck, rather than just skate it around and lose it.
I've never seen Team Canada play as selfish as a group played this World Juniors. Too many puck hogs, no cohesiveness on any line...and there were several times just today where several players were over the 2min shift mark.
That falls on the coaching staff big time. Canada has great players, they should be running 4 lines except for the last 2-3 mins of the game if you need to shorten the bench.