After the game, offensive tackle Eric Winston expressed his rancor with the fans' actions:
Winston is right. You may want to destroy your opponent on the scoreboard. You may want to hit them hard and inflict pain. Or perhaps, you may want your starting quarterback to get benched. However, when someone suffers a serious injury - regardless of which team he plays for or how bad of a player he is - the game is pushed aside. It becomes more about the health of a person than the score of a game. Even opposing players get down on a knee and support their injured adversary. To cheer for the injury of a player is classless, regardless of who the player is.
Kansas City has great fans, so it's surprising to see this out of them. Maybe all the scumbags in the area just happened to buy tickets to the same game.