Swapping Winnipeg and Columbus while they wait for the Phoenix situation to play out made too much sense for the NHL, I guess.
Realigning into unbalanced Conferences is stupid. Western teams will play 39% of their games against non-conference opposition. That will really build rivalries.
And you can have two teams from the same division both win division championships.
So if next year, say, Montreal finishes fifth in their division but eighth in the East they would play the top Atlantic team in the first round. If they win that round and the next one, they would be Atlantic division champions, and play the champion of their actual division in the Conference Finals.