See, I have no problem with additional effects just not happening. Hell, you have a chance to not have things work now: missing. I don't find it frustrating, I genuinely find it exciting! You cheer when it goes off and you curse when it doesn't. It swings the other way too, you curse when something CC's you and cheer when the effect doesn't fire.
I think there's no way to make the amount of hard CC in this game exciting without adding chance back to it. When just anyone can take off their offhand and knock a guy down when their physical armor's down, you lose a lot of satisfaction.
