Try job consistency instead of "homogenization", a much better term instead of the lameduck term that keeps coming up.

Tankings pretty fine, were sturdy, we do our job, DPS speed it up so its not unbearable and healers help when things are down or stuff gets heavy. More noticeable in extreme and higher but yeah, if dungeons were as much of a slog to get through as the SB era where nobody wants to use their buttons at all, yeah nah thanks.

Credible threats; DF and PF healers trolling by barely healing or dying repeatedly, and slow DPS making runs unbearably slow, and cotanks doing really bad jobs with tanking. The amount of runs I have to try to salvage in roulettes would add up real fast. Not to mention how nice it is in Eureka/Bozja to be able to self heal for various reasons, let alone deep dungeons or how handy it is in the higher tiered content where things actually hurt. I'm not part of any 0.1% speedkill group so we can safely rule that out given the general state of DF/PF at any given time. I don't need a snapshot moment of sustain, I just want to get the job done. Best moment as a tank is when everything goes smooth even after I greed and alternatively min/max my Damnation for that physical reflect.

Given the state as is where tanks didn't go through much of a rework from EW, it's a pretty solid ground especially with how PLD got a giant shield on Guardian, and as you mentioned the Thrill of Battle effect on Great Nebula for GNB, shoot even DRK got an excog on Shadowed Vigil. Clearly were doing fine, Healers just need to be more fun which is a whole other issue to work on, and DRK just needs to become consistent with the rest of the tanks. Dying is not a benefit, and Dark Mind is not a great cooldown, let's be real.

PLD is the tank with some nice range and really fun burst, GNB is the gas gas fast combo action tank, WAR is the slow man mode tank, DRK is the tank that needs help. DT didn't change the self sustain despite people complaining for months, I'd rather see the topic move on. Nerfing WAR isn't going to make other jobs automatically better, it's just going to make WAR's unhappy.