Riot's logic

Rioter 1: "Huh, so Jinx has a 53% win rate, what should we do?"

Rioter 2: "Buff her ult!"

Rioter 1: "Good idea, but now her ult does half the enemies health"

Rioter 2: "Lower the damage on flame chompers by a minuscule amount!"

Rioter 1: "Great! We have successfully put her in a better spot!"