Again, you're probably right, but IC Malakaus doesn't know this and wants to make sure that if you're going to take justice into your own hands, it's done correctly. That and to make sure she doesn't hurt anyone who doesn't deserve it or by accident. Because if the incident at the castle was any indication, what you want to do (Minimize collateral damage) doesn't always end up what happens (Death and destruction).

That being said, why are you guys fighting? Malakaus will be asking anyways, but I wanna know myself.