
I think part of the confusion is that all the non-blessed NPCs were already fleeing from the area as soon as Bahamut started attacking. Moreover, there's no evidence that any non-blessed characters were teleported from the area. Most notably, as the Admiral's story tells it, only members of the Foreign Levy disappeared from the field (and by extension, her mind).
I will defer to Anonymoose's explanation of the turn of events here, as he's far more familiar with the lore than most players (and may even be on par with the actual writers & translators). All those who were teleported forward through time were assumed to be PCs, who are all assumed to have the Echo, and thus make up all of the Warriors of Light who came from the past. Any NPC adventurer said to have the Echo/be a Warrior of Light is a stand-in for another PC (since they can't have actual PCs in their place, of course) to help give the player some perspective on events.
I will defer to Anonymoose's explanation of the turn of events here, as he's far more familiar with the lore than most players (and may even be on par with the actual writers & translators). All those who were teleported forward through time were assumed to be PCs, who are all assumed to have the Echo, and thus make up all of the Warriors of Light who came from the past. Any NPC adventurer said to have the Echo/be a Warrior of Light is a stand-in for another PC (since they can't have actual PCs in their place, of course) to help give the player some perspective on events.