Why take away aatroxs revive?

First off ignore my name i made this account over 5 years ago.The most fun part about Aatrox is that he revives when he dies after he gets a kill its rewarding it encourages you to push in to get the kill its a reward system. He is a character that's meant to push in to confirm the kill if you take that away you feel as if his ult isn't as powerful i feel like Aatrox was fine before but if not he could use a nerf but not with his ult. His ult is meant to take on 3 people (to me at least) if he is a level above them if you can get a kill you die so you have to be either better than them or a higher level it makes people realize that if they are not a high enough level they don't stand a chance i feel as if that's how its supposed to be with any champ.