It looks like the videos have been taken down. I saw one earlier that was truly harrowing - blood everywhere, on the ice and down the front of the player's white uniform jersey, as the player was led to the sidelines by a teammate after having his throat slashed by an opposing player's skating blade.
If you didn't know better, you'd think it was a sacrifice.
Do you people honestly not know what happens when your main artery is sliced open. Of course it looked bad you bleed to death in less than a minute once that artery is open and it sprays every where.