Warrior Tanking

[Nalou]

A class is defined by its playstyle, not by the mechanics used. WAR has always been defined by Wrath generation and management rather than the self healing that you (and many other people) focused upon to the exclusion of pretty much anything else.

Actually no. Proactive tanking vs reactive tanking is a playstyle, more than a mechanic.
2.0 warrior was waiting for spike damage to happen THEN popped Inner Beast to recover.
2.1 warrior tries to pop Inner Beast BEFORE the damage to reduce it (which is a lot harder, you cannot simply hold on wrath till something happen, you have to know when something happens and anticipate). This impacts the way a warrior manages wrath, because the goal is now to have wrath built for specific points in the fight.
So the playstyle changed.

Let's say we switch Inner Beast on a 20s CD with no wrath involved. The mechanics would be different (no wrath to manage), but the playstyle of the class would pretty much be the same: chain combos for enmity, debuff, buff and pop special ability.

So the nature of Inner Beast (reactive or proactive) is a playstyle.
The mechanic is building wrath or dealing with another resource like timers, tp or mp.