I didn't play much of FFXIV (only FFXI). Were the other "main" avatars in the game already - Ifrit, Leviathan ect or are they adding them now for the new SMN class?
Iirc they're bastardizing summoning because Yoshi didn't like how it was in XI (multiple people with the same avatar). The ones in XIV, lore or otherwise:
-Mog (was a summon at one point in FF games, so this counts technically.)