You can't ask for more defensive options and for assassins to be relevant
The Boards was complaining about how useless assassins were and because people were so safe, ADCs could be a lot more relevant and steal agency.
There needs to be a fine balance and I think we're close right now actually. Yes, there's too much damage now but I actually believe if ADCs can deal more damage by gaining 200% critical strike damage than they do now they will be relevant due to lifesteal and tower shred. They will also be able to burst squishy assassins who just think they can jump on top of them without reciprocation. (To the argument ADCs shouldn't do BPS - I disagree. They shouldn't be bursting tanks/bruisers but if you have no resistances and are an assassin, sure as hell should be bursted by a class whose purpose is to do a shit-ton of damage)