Being a Canadian this one hits home really hard. I seen the video (well I had to turn it off pretty quickly) and it's just terrifying. I cannot imagine how the players/coaches and the supporters are feeling after watching this.
Growing up you wear what is called a neck brace/protector for this very reason. I had so many close calls growing up and this I am sure saved me more than once. I have no idea why once a player comes out of the "amateur" ranks they can ditch it. Not one single player in the NHL wears this.
I believe in the 1980s a goalie in the NHL got a skate blade to the neck but he survived thankfully.
We have pro team here in my city and I took my son to his first game last weekend and he had such a fun time. I cannot imagine the parents who brought their kids last night to this and now having to try to explain to those kids what they saw. EUGH.