You guys need to seriously re-think your approach to difficulty in endgame. The CC spam is not fun. Watching your character die as you are utterly helpless is not fun. Forced movement (or lack thereof) is NEVER good design in a video game.
Do you like games that do their best to take away player agency? What if you tried to play soccer and every five seconds the ref grabbed you and tied your feet together? Sounds fun, right? Would you keep playing soccer? Probably not.
The only hard counter that actually lets the player have fun is Unstoppable, which is in short supply. By extension, any skill that provides Unstoppable is effectively mandatory, which is also not fun, because it further limits build diversity (which is already lacking).
Please, re-think how you have implemented CC in this game. It is, for lack of a better word, atrocious.