Every cc above 2 seconds should be nerfed.
Unless it's an ultimate ability. Considering the average adc can oneshot a bruiser in 3 seconds there is no point to CC's to be over 2.5 seconds unless you nerf the dmg.
Getting hit by a Morg bind at any stage after lvl 6 is a 100% death. Gettin polymorphed means a sure death. etc etc. Not every champ can gimp their build with Qss.