[FlamesAddiction]

Before the rule came into effect, there were some pretty brutal games where players would flip the puck over the glass to get a break. I recall one team doing 3 times in a row before the ref finally called it a delay of game.

I think it used to be the referee's discretion to give a penalty, which I think puts too much on them. Refs are brutal when it comes to discretionary calls, so I prefer the automatic penalty.