btw this would be huge nerf to destro, and again would take away complexity of the class. For both theres no reason.
X ability being in game since Y period of time does not justify a broken mechanic.
destro will still be awful without double cs. It needs help in other ways but then again who cares. Warlocks are afflic.
As the op said, it needs to go. People in this game need to not be biased just because something benefits your class. Try to think objectively.