How do we feel about tank damage right now?

[Reynhart]

Because DPS is the only thing that matters in this game.

So, how come we don't have 8-tank parties ? Or, 6-DPS, 2-healers ?

Lyth already detailed all the potential ways tanks can be involved and engaging yet we lack any of that nuanced gameplay.

That's a completely different discussion. Even when tank did fairly high damage compared to DPS, the lack of real "tanking" challenge was an issue in my opinion.

Enmity has been a joke for years, bosses re-position themselves and damage is entire scripted; with auto-attacks being little more than fluff.

Sure, and, on top of that, tank rotation has been streamline to the bare minimum. So, why should tank be rewarded as much as before (or even more) if every aspect of their implication has been reduced to the bare minimum ?
I'm pretty sure "turtle" tanks did comparatively the same damage as all tanks do now. And their additionnal effort was how to optimize mitigation to do that extra damage and damage was their reward. This is gone, because this forum claimed for years that you should never have your damage penalty on.

What else are tanks supposed to care about besides damage? That is the one metric we have influence over, thus it's why tanks focus so much on it.

Yes, one field where you can improve yourself, by knowing fights and rotation...which has still nothing to do with with how much damage DPS do.

It's the same problem healers have. They're "wannabe-DPS" because nothing encourages them to actually heal.

No, it's not. If a healer refuses to DPS and only focus on Healing, he'll have time when he literally has nothing to do. There's a reson why the idiom "Always Be Casting" is that well known. Tanks don't do nothing when they don't hit one of their mitigation skill.

But yes, I (And I'm obviously not the only one to) think that encounter design is an issue. But, most of the time a suggestion is made to make the content more "tank challenging", people brush it off saying it couldn't be done because it would make "engame content not new-player-friendly"...And I'll let you sit on the sheer absurdity of that sentence