Nothing in a big picture sense. It's more good to see that these tournaments have 5 or 6 legitimate threats to win.
For the tournament, in a more micro sense:
1) Best player already in the NHL
2) Roster construct was flawed (other top talent left at home, underutilized, and/or injured - Schaefer)
3) Offense/coach was tactically flawed (attempted way too many perimeter shots)
4) I think 2 & 3 snowballed on them, played frustrated, dumb, and selfish. Other teams are too good to get a free pass when you are playing bad hockey like that.
It's not a bad thing, other countries are getting smarter and maximizing what they have, Canada should do the same. No growth without pain.