it seems like junglers still decide the game

Sounds like bad games on your part. Junglers have less gold, less exp, gank less.often, get weaker items. If a jungler is deciding the game you gone screwed up

Junglers can be screwed by the laners. If all the lanes push to the enemy. the jungler can not gank without diving. Diving is too risk with all these assassins and their executes No diving = no gank, no gank = no exp+no gold = behind = more control for the enemy = more dragons for the enemy It's the junglers job to capitalize on opportunities created by the teammates. If the teammates don't create opportunities, then the game goes to whoever creates and acts on opportunities. No, everyone decides the game.

No, it's these babies that decide the game.