The trouble is, the Grand Companies are now rather obsolete both story wise and gameplay wise, as they played a far greater role in 1.0 and early ARR where they were a means of consoldiating the resources of the three cities in order to meet the Garlean threat head on, but fell into irrelevance as the player's character drifted away from "adventurer working for a citystate" to "member of Scions of the Seventh Dawn, Primal slayer and Hydaelyn's champion", which basically transcends any individual city.

And with EW basically amalgamating the three Grand Companies into one as "the Grand Company of Eorzea", it's even more irrelevant now sadly.