Apparently the best way to fix the lag is make it so no one can use their abilities. The whole "Global CD was most effective" statement is so insulting to the player base. Of course it was the most effective, because it essentially prevented players from being able to use skills for large chunks of time, (nevermind that it effectively ruined the combat of the game). I'm not educated in server hardware so I can't definitively say "Just upgrade your servers." But this does smell suspiciously of them finding the cheapest solution regardless of the consequences it may have on the game. If you push through any kind of global CD then you may as well shut down Cyro for good.
Btw I don't even group in Cyro. I hate this change and I can't imagine how bad it is for people who actually do Group V Group or Raid v Raid.