Because then he would be useless. If you play Gnar you'd realize that without his W always up he is useless. His cooldowns early are absurd. Nothing in his kit is constant early game except his W, and if you take that away he would be useless. I'd recommend you go try Gnar and focus on your damage early, because his W is so important to his early game. You have a window to fight him the whole game. His mini form has a high cooldown unreliable escape (very short dash unless you bounce) and is extremely squishy. He can try for a speedboost with his W, but that's not an escape. His mega form is slow, but he can jump away. His W+Q combo stuns you for 1.5 seconds and he has to wait over 5 seconds to get any spells back. That means in one trade, if he goes in, you have a 3.5 second window to attack him. Mini Gnar has an 18 second cooldown on W before CDR at rank one, and his Q is 20 seconds at rank one without catching the boomerang, it's 10 seconds if he catches it and forces him to predictably position. What do you mean there is no time to fight him?