I've watched it, played hockey for 20yrs & reffed for another 20yrs. In my opinion it was a total freak accident as the guy with the skate got clipped & knocked way off balance.
IMHO no way there was intent to slice the throat.
I've clipped people & sent them flying higher than from a hard hit. As a ref, ive been clipped by accident while skating backwards & did a summer sault.
I will say I totally back the call for neck guards all players & on ice officials.
The NHL & other leagues should fall under basic H&S Min of Labor rules on PPE
Chin straps done up properly, ear guards on the helmets that they play with all through minor hockey, neck guards, full face shields or cages & mouth guards.
Neck guards are mandated in ontario minor hockey for years for players 1st, the on ice officials about 12yrs ago after a linesman has his throat slashed in an ice incident.
NHLPA needs to rethink their views on player safety. They grow up playing with full face shields, neck guards, ear guards & mouth guards. All need to be worn properly or its a penalty & or game misconduct.
Kids follow what popular NHL players do.
Chin straps way too loose, mouth guards sticking out like a chew toys etc.
I've done emergency 1st aid on the ice as a trainer & referee to many times from kids not wearing equipment properly.
There's my rant