Honestly, you cant tell me adcs are balanced anymore
I still see people saying "its only 1-2 broken adcs" or "only supports make them broken" (which is kind of true but adcs are a problem too, and blaming Ardent after the nerf is just ignoring a way bigger issue imo).
There actually isnt a single adc that is doing bad right now. Twitch is at 53% win rate and the lowest adc that is actually played bot is Cait at almost 49%, because theyre all opie lul.
Lucian and Corki were "too bad" for bot lane, yet they were so strong mid and Lucian even top that they got nerfed, same will/would happen with Ezreal jungle if preseason wasnt coming in 2 patches.... idk about that class dud xd
and
are played most of the time against each other, their winrates won't be as higher as an "oppressive" mage in mid lane, because every match 
or crit, apart from that they literally burst things as fast as a burst mage and assassins with duskblade. Not to mention adc's aren't limited by cd, delays, and skillshots, just time. You literally need to keep killing an adc so they can't farm or finish in like 10-15 mins or they will comback and twoshot you. The bot lane in general needs to be looked at, for Riot to preach counterplay, adc's really dont have one, being able to die fast is the same for old assassins but they still needed to be changed, when rengar built full crit he was squishy but still could oneshot your whole team. That isnt counterplay.