Dirty hits are dirty but they are still part of the game, and will always be, factually. It' s hockey and sometimes it turns ugly.
Too bad, it happened to Drouin and hope he will recover quickly and be available for team Canada.
But it doesn't lessen dirtiness of the hit or accountability of the offender even if the receiving end had been some nobody. - Sometimes it just sounds that way by people's reaction.
If a star player commits a dirty play on some small fry the common reaction is something like: "It was a bit silly from him. Hope the kid is okay. But you should not turn your back like that/you should keep your head up..."
There's a double standard here.
And what do you think of, say, Mark Messier? Okay, you may say it was a different era. But by the same token all that is an essential part of the game's glorified history and self-image. Violence is inherent to the game - and its appeal. You cannot get rid of it, only regulate it.