How do we feel about tank damage right now?

[Ivellior]

And yet tanks have always dealt damage and threat/enmity/hit-me-instead-points have with few skills' exceptions always been based on damage dealt on any tank in any game.

Following this logic we could say that since enmity is no longer based on the damage dealt anymore (it's a toggle now) there is no reason to do high damage anymore.
In games with trinity enmity was produced from damage as well as skills that only give enmity. For example in WOW classic Warriors got most of their enmity from taunt that did no damage. And in all games with trinity tanks always dealt a lot less damage than dps.