Zed and the new Assassin update

So riot has released a new update that made tanks worthless. I have a rune page dedicated to my beloved tanks (gragas, braum, etc) and it doesn't matter that I can have 100-110 armor and magic resist at lvl 6 because with the new zed update his ult can 1 shot tanks through it. I miss the tank meta (opinion). I feel all these changes to damage classes (mages, assassins, ADC's) have ruined the game for those players who enjoy the tanks. I doubt we will ever see a tank meta again due to the fact riot wants games to be quick, rather then long drawn out games where the tanks get built up. In my opinion the assassins already had huge power points and these changes just made the game unplayable for anything else other then the new reworked assassins. Adc is unplayable because no amount of tank peels can keep a zed or fizz from getting on them, zed can cut down the entire team before 1 hard cc hits him. (example - Braum Q...needs 4 hits to stun, a zed can ult the adc and kill her then leap back to the front line 2 shot the tank then shadow clone back in for the mages before the stun happens)...this is the end of the game I once knew. Hopefully someday riot will do a tank update and make tanks actually worth playing again but for now we will continue to see full teams of assassins, no adcs/supports/or tanks.