Let's see what Cozens does this season. He is consistently very good internationally, enough that it cannot just be written off, he's a very talented player, and he's quite versatile. Cozens was Canada's best offensive threat at this tournament and also a regular on the PK, plus he can play RW. If he develops a bit more it wouldn't be a surprise to see him playing a Jeff Carter type role at a best on best tournament as people who criticized his selection marvel at how effective he is.
Cozens isn't going to be one of the players who drives a line, but when looking for the complementary pieces you want guys who provide versatility in addition to world class talent. There's no question that Hockey Canada took note of Cozens in this tournament. I already dread TSN calling him the dark horse from Whitehorse when doing Olympic projections.
I really enjoyed watching Tavares internationally again. Obviously he's slow as f*** but still a very good player for this level.
In terms of performance, Celebrini and Fantilli likely make no positive difference outside of giving Canada better options in the shootout. They realistically didn't fit what the team was trying to do and while I wanted them there for the experience they would have contributed less than Hagel and Paul did.