Quote Originally Posted by Shirow View Post
The problem with this interpretation is that it could easily be abused in actual play. You could very easily cast it on your willing barbarian who will forfeit her save and then you can send her to hack away at all the enemy casters, who then would not get a save.
Yes, that is how the rules work. It is not an interpretation, but the intended effect of the spell.

I think you're overreacting. Having a silinced team member going against enemy casters is a good tactic but it does not cause the game to grind "to a screeching halt" nor is it a fail-safe shutdown against casters.