Assuming the community doesn't drop the 'meta' after the developers have confirmed it does not exist...
Homogenization of buffs / debuffs is really the only answer at a job level. So, whatever buffs / debuffs say a ninja provides, every melee DPS provides it. Same for casters, ranged, tanks, and healers. This is an extreme—and on a personal level, undesirable solution—but it may be the only answer if the community still believes in the meta fiction.
