Homogenization and Simplicity in Tank Roles

[Absurdity]

This does bring up another interesting point. During HW and SB, most tanks were in their DPS stances for 99% on an encounter. This meant tanks had very similar HP (Warrior had an insignificant amount more) and they were all taking the same damage. It is effectively the same situation we have now. Sure, there were slight differences in the DPS stances, but nothing that affected your survivability where every tank worked the same. So, why is it now an issue?

It's an issue due to various other factors that happened at the same time. Nobody would've cared if they for example made all the stance oGCDs, effectively giving every tank stances that achieved the same result.

But they removed stances entirely, removed all mechanics associated with them, simplified certain other aspects of the tanks, either as a result of the stance removal or due to reworks that also made two of the tanks feel a lot more similar than they did before.
The removal of stances themselves isn't really the big issue, it's everything that came alongside their removal.

Goodness. This homogenization comes from the fact that the dev team's attempts at "variety" have consistently fallen flat and resulted in profoundly frustrating gameplay at times.

It's not exactly worthy of praise if the only way they manage to fix those frustrations is by monogenizing tanks.