Honestly, I find the issue with this is you are focusing on a Tank being a better DPS rather than thinking how can Tanks be better tanks. That's the honest issue with tanks right now they are so focused on being a better DPS and put a greater strain on the healers when they should be more focused on mitigating damage as much as possible and trusting their DPS to be enough for the challenge.

I would rather find a way for SE to create ways to add benefits for proper tanking rather than making them a DPS that can take hits and hold hate well.