There was merely a stated preference that, rather than having to...
- buff every other tank to the best among tanks
- buff every other role to the best among roles up to the best among all roles (tanks), and then
- buff content as to not be a pushover joke (as would otherwise be for the worse to those who actually enjoy content/challenge instead of merely its rewards)...
...we would instead simply nerf the singular outlier, saving us 95% of the work and risk of worsened balance in the interim.
Right now, that overpowered outlier among roles is tanks. The overpowered outlier among tanks is Warrior, even if only greatly so in certain situations -- and those coming only from oversights that worsened Warrior gameplay and theme for virtually every veteran Warrior who actually cared about gameplay or theme (as opposed to just... being OP).
(Even in that limitation, though, Warrior essentially precludes entire content types in itself, such as Savage dungeons not in the spread-out everything's-a-miniboss model, since it'd be so damn obligatory for it under its present relevant ease-of-power-over-gameplay mechanics.)