They reworked Deep Wounds for Shadowlands, so it does barely any damage at all and is basically the Arms version of Enrage, but you have a pathetic DoT instead of a fat haste buff for your damage damage modifier. If not for Mortal Strike applying the DoT, we’d just spam Condemn permanently when it was up.
The only Arms design I’ve played worse than the current is the WoD version, which was basically nonfunctional until T18.