Hybrid classes - SAM & RD MAGE.

[Zaft]

Except that you give up Tanking talents to make Gladiator Stance worthwhile DPS.
Not only can you not switch Stance in combat, you required a FULL set of pure DPS gear.

Gladiator Warriors are not Tank Warriors.
Defensive Stance alone does not a Tank make.

Do you think it would be any different here? Granted our "tanking stat" parry is crap compared to bonus armor or mastery, but the fact remains that you would likely have different sets of gear for different scenarios. I know I don't tank T13 in all STR gear like I do the other turns.

Also talents in that game can be changed on the fly outside of combat in just a few seconds. So I wouldn't really consider that a big deal.

[Sylve]

Words

Given that you can simply flip your entire spec more easily than fiddling with a half dozen talents, trying to be a hybrid is a waste of time.
Why get the DPS Warrior to do it? Any Druid, Monk, Death Knight or Paladin could also just specflip and be a Tank.

Hybrid classes work in WoW because 1 character = 1 Class.
No such issue here, So theres no reason for any Job to NEED to be able to flip roles like that on the fly, there is presently no content that would take advantage of it naturally outside of Statics with a specific strat in mind.

Being role focused is good for a Job, it eliminates the wasted Skills for the other Role that you may never even play, let alone like.
If we had a hybrid Job, it'd need enough skills to be an effective Tank AND enough Skills to be proper DPS. You'd end up with half your available skills wasted on a role you never use, giving you a very narrow selection for the role you DO like.
Like Druids were in WoW for the longest time, 2/3rds of the total skills in its spellbook were entirely unusable at any given time.