But that's the point. WAR has the shortest recasts on their defensive abilities of any tank. There's usually a way to avoid spending stacks on Inner Beast, and it usually means that you're playing sub-optimally if you do.

Generally speaking, Raw Intuition is the only defensive cooldown that gets tied up by Berserk. Both are on a 90 second recast. The Vengeance stack is essentially free, unless you're trying to reset Infuriate prior to your opener. If you need to use Raw Intuition defensively, you just adjust your swaps so that the Berserk window syncs up with the damage. But the recasts on Vengeance and Holmgang are so absurdly short that this is usually more of a bonus.