Apologies if this has already been discussed, I couldn't find mention of it on the lore forums. During the quest An Univited Ascian, Nabriales says explicitly to Minfilia that the staff Tupsumati is able to draw upon a vast amount of ether from its surroundings. He also states that this was why Louisoix didn't need a large number of crystals to summon the Twelve. This seems like an explicit statement that the Twelve are primals. Yet the peoples of Eorzea treat the Twelve with veneration whereas Ifrit et al are seen as monstrous. Are there different degrees of 'primal ness'?
Also what is the 'horn' that Nabriales mentions in the same conversation?