The cast time is like, 1-2 seconds. Not really seeing the problem here. In PvP, sure,those may be precious seconds which could mean the difference between escape and being swarmed. But...that's just PvP for ya. Most of the time you just have to know when something is a lost cause and retreating before it escalates any further. Sometimes you simply can't. Such is PvP. In PvE...this is a non issue entirely.