@Riot, It's time for you to seriously fix the no smite Jungle issue

I respect all the changes you have made to make the game more enjoyable for jungling. You increased the difficulty of the jungle for good reasons, and tweaked junglers with changes to how smite works, but this has made it virtually impossible to play jungle without using smite. It seems kinda silly that a single player who forgets to choose smite can literally throw an entire game for his team. If such a summoner spell is so integral to this role in the game, why not give players a chance to fix mistakenly picked summoner spells within 15 seconds or before leaving the summoner platform. I can't see in any way how this would "break" the game. I don't mean this in anyway to be rude, I just feel that this annoying issue should be resolved in some way. Thanks.