So it doesn't matter in IIHF hockey if you hit the player in the head, or not. Look up rule 150, interference + injury = ejection. Could have also gone with roughing + injury (specifically head hitting the boards/ice causing the injury) = ejection, as that one is in the books as well.. Both have been called dozens of times in the last few years, so no surprise at all and very much a penalty and a game. You clearly don't watch a lot of IIHF hockey.