Originally Posted by
Morningstar1337
It wasn't but the Soulstones as a concept were tied into jobs, being their psychical identifier and needed to be equipped to use a job (compared to the average class that needs only the weapon or tool). Rarely were Soulstones shown in a context that didn't involve jobs in some form. think of it as a Square and a Rectangle scenario
Though this has reminded me that if Azem's Soulstone were to be use for a Job it'd like be in a similar case to the HW jobs (MSQ gated), but that aside I hope its storyline would be like the DRK, an in-depth look into the WoL/D's character.
Also yes, each of the Convocation oversaw a specific aspect. Part of which can be seen in Akademia Ayndyr where we walked though(IIRC) Halmarut, Mitron's and Lahabrea's likely domains. however they are more like RL jobs then FF jobs IMO.