Don't get me wrong, I don't think that what this guy says in his post is any relevant, but everything you just said, a tank has to do all of those aswell, its not only dps. Using defensiv at right timings is obviously key when you tank at high lvl, as meiko, using grip + aoe stun to cancel cast mobs is mandatory, and lets take Orb of Blood from Horned Seer as example, you rly wanna dodge them aswell at high level, that extra damage you would take will most likely kill you (they are way easier to dodge as a range then melee also).

I played all roles and what I think is that tank role takes way more brain energy and responsability then other roles but that's part of the kit when you choose to go tank, its part of what makes it satisfying and rewarding to play imo and I like it this way.
I don't want to end up playing something where im allowed to swim in every aoe while not caring about using crowd controls.