Debatable. Up to October patch Tanks were blatantly most impactful.
And they’ve been giving out bribes for longer than that (lootboxes for over a year before queuepass). The ladder is so lowpop high queue most nights and LFG was never this dead. You can’t even cash in their fiat currency most nights because well, broken and dead.
222 is a failed model. It didn’t “save competitive” as you suggest.