Wow. Once again, the NHL has proven they cannot provide consistent discipline. Might as well say Rome won't be playing for the rest of the Stanley Cup Finals. If Rome gets 4, Chara should've received a much larger one for the hit on Pacioretty.
If it had been a Sedin hitting someone like Peverley, there probably wouldn't be a suspension. Chara on Pacioretty, no suspension. Rome on Horton, suspension. Marchand on Kesler, suspension.
Ovechkin gets away with murder all year.
To be honest though, the suspension is probably also partially motivated by the fact that they want to keep this incident from affecting the rest of the playoffs. If Rome's in, he's a target. By suspending him, you keep that aspect out of the game, at least the majority of it anyways. I'm alright with it for this reason, but I would also like to see some more consistency with the rules on this, even if it means kicking Ovechkin out for a few games.
While I'd like to see a good SCF with Horton in it, the fact that he's out and Rome is too is probably a net benefit to the Canucks. Hamhuis will be back soon (hopefully), and the Canucks still have two NHL ready defensemen in Ballard (who should be playing anyways IMO) and Tanev who can easily step in. Losing Horton is a pretty big blow to the Bruins.