Correct me if I'm wrong but to me it seems like one of the healthiest buffs possible.
Diving would becomes more punishing as the damage increase for each consecutive shots would be significantly faster.
The windows for champions to attack a turret would be smaller as clearing minions under turret would be faster, extending turrets lifetime.
Farming under turret will be harder so it will encourage players to learn how to manage creeps more efficiently as clearing minions under turret would be faster, making the loss of cs under turret a greater threat (This is something I personally have issues with).
Any thoughts on it?