What about Warriors of Light who were not strangers coming from outside Eorzea? Would family suddenly forget them despite that picture on the wall? Would a parent know their child went to that final battle, but not recognize them should they come home five years later (despite said family picture on the wall?)

When placed next to a picture, would they still be a stranger? Would the picture have the same shadow against the light effect when looked upon? Would the text or signature of a Warrior of Light be blurred out, or would it be simple disbelief that would keep records from being believed?

It feels like this is something that would be known early on in the plot, but it isn't there.

At the end of the main questline, a Warrior of Light seems to be remembered by the most important characters in the story, but what about the rest of Eorzea? Even before that, there are at least two characters who remember you. One possesses the echo, the other for reasons unknown.