when you have a job that is omnipotent we have a problem, when you have a job that do everything that the others equally or much better then we have a problem, one thing is fullfill the basic requeriments of you role and other thing is just overexcel over the rest, this is a game where many jobs have to coexist and being more or less equally desirable for party compositions, the apealing of taking one job over others its bcs in part they bring something unique to the party like how DRG offers battle litany and how SAM offer his personal dps powerhouse, thats are niches and makes jobs more unique.
the game its not around WAR and everything should not be like WAR bcs you will have just clones with small diferent weapons, everyone have to do his job as a tank but not everyone need a group shield but in compensation will need to have something equally impactfull to you party, not everyone need the best invincible skill but need something that will make it speciall in compensate,not everyone need to have the best movility but have other tools to compete, or have the most smooth tank stances but have other stuff, thats what we are claiming, and WAR hold all those niches for himself in a selfish way.
self healing, movility, best invu, best overall and versatile mitigation, best type of damage burst, best raid shield, best snap agro, lest say PLD, GUN and DRK have to have all of this like WAR, then WAR niche of doing the best dps have to die for it, the niche of burst damage have to die too, they overall versatility have to be replicated to the toher 3, ect and ect, this will lead to a masive powercreep problem, how many fights has been cheated by WAR for his insane capabilitys? skyping mechanics, creating unintented ways to surpass others, all the logistical effort save by holmgang?
it's not blind WAR hate, it's comon sense from outside of the box point of view and experience from other MMOs that create more problems by just buffing everything just bcs they din't tuned down a single job that invade everything making eveyone demand for more diferences betwen the jobs or claiming the return of the old niches.