Tanks and healers can still carry bad DPS through a fight, that hasnt changed, all that has changed is the time it takes. You cannot have tanks doing DPS levels of damage, or even have them be close, otherwise you run into the grey area of, why bring a DPS over the more durable tank that is still doing about the same damage.

This goes back to, people only tanked because of short queue times and the fact they done alot of damage. If you increase a tanks DPS up to the level of s DPS, you can gauarntee alot of eopple will be back on tank for the sole purpose, but that doesn't help game balance.

Hopefully, they can focus more on encounter design in EW to make the tank role more exciting, expecially since they have added more defensive options, which sound like they unlock more offensive options, but we will have to wait and see what happens in that regard.