If they in any way buff tenacity to do more damage than a traditional stat it is busted. It gives moderate offense and moderate defense. If it provides more damage than another damage only stat you may as well delete that lower damage stat from the game because it will be avoided like the plague. Why build det when tenacity does more damage and mitigates? Etc.

Any ten rework cannot result in it passing up a damage stat while also providing defense. This is akin to adding damage to piety.