If this suggestion goes through, then it will be indeed a domino effect.
people will next ask to lower champs' damage with asura and tss
people will then ask to lower LK's Bowling bash damage
then people will ask to lower Paladins' reflect percentage
people might even ask to lower the damage of arrow vulcan.
I dunno.
Everytime we nerf a class, people would want to nerf the others, which makes the game still not balanced(nerfing the strong class then nerfing the weaker class is pointless right?)
But in essence, we could try that for a while and see how the community reacts, people already reacted way too much on the valk randgris issue on sinx, imagine how will they react if you nerf their best skill)