So you have a champion who's entire DESIGN is to get to late game through proper cs and Q stacking that's fine and all sounds like a cool champion as long as the con is TIME AND Q STACKING
If you learn to cs and Q through the early game like a good nasus would do before...Then i don't mind you being strong.
If riot is going to Give his stack scaling a shortcut then his survivability becomes a problem because the reason he has that lifesteal is because he doesn't want to fight or do anything other then staying in lane sustaining and getting a q on every minion to scale as Efficiently as possible to end the game that's not the case anymore so they just flipped the champion identity around and now he is just obnoxious You can change the identity of a stale champion but atleast take proper measures like give a little buff for early take away some late game aspects its like they mess with shit then create things that ruin the competitive aspects of the game.