I'm reminded again of the rumor of some jobs getting multiple specs based on a variation of weapon. Like Warriors dual-wielding one handed axes for a DPS spec. I can't see it happening for Stormblood, but maybe in 5.0 or 6.0 it could be a thing. Just runs the same issue as SCH/SMN (and those two working against the system being two different jobs rather than one with two specs), in terms of which stat you'd invest in. Probably would also create gear issues or require built-in passives linked to the weapons to turn the primary stat to a DPS boosting stat depending on the weapons wielded.