Berube just hasn't been a head coach long enough to be one of the guys passed around the NHL enough to become hated. 2, maybe 3 fan groups get to not like you, then you've got the mark. Then you're the retread. Gallant used to be the cool new guy. Everyone wondered, why did the Panthers leave him on the corner that one night? What are they, stupid? Like a Bettman franchise knows hockey or something. Then 2 or 3 teams later, and it's ok, alright, we get it.
Winning cures all. Be it coach, player, GM, owner. You suck until you win. All the flaws come out when you lose(or don't win). Then the second you don't win again, we find those flaws again. Which, of course, were always there, even when you won, but you happened to win. Whatever you did to win must've been right, even if you do the same thing later and lose.