So WotA is bad but this is fine
https://youtu.be/DKXw7CNUCiE?t=28m40s
that was what, a Q and 2-3 autos? and heals for over 1000 HP in 2 seconds?
Riot will keep Vlad / Fiddle / Mundo / Morde / Cho'Gath etc. down for too much healing and removed WotA
but AD champions can just get 1-2 lifesteal items and heal more than any of those champions 10x more efficiently, Gunblade (an item I'd argue is even worse than WotA because of its absurd active and the fact that it applies to everyting not just spells) still exists, and Riot does nothing to curb ADC's having no downtime lategame because of how they can get BT and never come out negative in a fight
or AD bruisers like Fiora and Irelia and Riven and Camille building BT with Ravenous and SV and becoming as hard to take down as a juggernaut but with CC and mobility on top of whatever healing they have built into their kit
if spell vamp and healing champions are considered toxic then something needs to be done about lifesteal and how much it child-proofs the game for a lot of AD champions