Eh, WAR isn't any more overpowered as much as other jobs are underpowered IMO. Abyssea ruins all jobs that don't have a crit WS and semi-decent defense capabilities. Drg, Rng while having a crit WS, has no native defense capabilities, and in the case of ranger, no defense at all even when subbing nin/sam because you have to stop using ranged attacks, have a delay, then finally use the ability, all the while being beat senseless.

Poor Drk and the like doesn't even have a crit ws ftl >_>