I have a question, what the hell was he doing in the corner facing the boards? Sure Rivet shoulda had a 2 minutes but still the league needs to tell these idiots to protect themselves. Watch vets like Kovalev, Jagr and so on go into the corners, you'll rarely to never catch them their back turned, they'll have their backs braced against the boards.
I blame minor hockey and Junior hockey, every single coach has input the doctrine of turning the backs to the guy to "protect the puck" and "draw a penalty" so much you see Kids like Bergeron keep that reflex into the big leagues like the NHL where it hits much harder then Junior hockey.
There is a lack of respect but it's not just from the guys dishing out the hits.
The NHL Front office is really to blame since they'll punish some, let others go and do nothing to fix the problem (they're not even publicly acknowledging that there is a problem).
Solutions?
-Not being afraid to fine teams, coaches and players.
-Have a set formula to dishing out suspensions (and dropping the "he didn't really mean it" crap).
-Dropping the instigator rule, this video shows why, rivet got 5 for fighting, they other guy 2, 5 and 10 for defending his player.
-Warnings, public warnings and fines to teams and coaches that repetitively use the tactic of turning their backs to draw penalties and immunity of body contact.
-Direct the refs to be more lenient for hooking, holding and roughing calls when players use their bodies along the boards to protect the puck while facing the boards. That way you have other means to remove the guy in the corner with the puck then just using your body momentum (and driving a guy's head in the dashers).
-The rubber dashers Don Cherry proposed, it's inexpensive and a good idea, won't guaranty no one will get hurt but it's added protection that just can't be bad, but yeah bettman didn't think of it so it's not good
-Teams suing the NHL for the loss of a player (hence money), and players suing for lack of job security and protection. I REALLY don't like this idea but when all else fails it's the only way to get the yes men and the midget to actually do something.
ps. Sure loads of people will disagree with my solutions, but these are usually the ones to cry about lack of respect and alarmists who says someone will die but never really have a solution to put on the table.