While it may be frustrating to get parried or dodged, the simple fact is your rune's don't go on cooldown when it happens. We suffer no resource loss like a warrior does if CS or throwdown gets parried.
(Don't trust my frost advice tho, I'm an RBG frost hero and unholy arena)
Actually, I had no idea that runes or runic power wasn't consumed on a dodge or parry. That makes it an easy call. Thanks alot I had never noticed that.