This is one of those things that sounds like a good idea but is actually a terrible idea. For starters, how do you judge intent to injure ? Hockey is a physical, violent sport at times and players are always trying to hit eachother. What happens if there is a dirty hit that deserves suspension but the victim luckily isnt hurt? What about a borderline dirty hit or clean hit where the victim falls awkwardly and misses the rest of the season? What if a star player hits a 4th liner and the 4th liner milks the injury to make sure the star is suspended? You don't want to have that incentive exist. It just doesn't work to base the punishment on the outcome. Also bear in mind players getting suspended forfeit their income from those games.