In reality, what we got was the opposite effect. They started out baking job kits into their lore with job quests and external media, but as they started reworking old jobs without a care in the world to try and preserve basic elements to their design, they stopped doing those things. But you still see those contradictions all over earlier content. Like how Arcanist is talking about an entirely different class to what you're playing, or how Astrologian references Nocturnal Sect.
You have to get through battle no. 1 which is convincing them to care enough about blue mage in the first place to add a 'limited blue mage' standard job with a static kit that's balanced around standard gameplay.