Artistic Oversight here or......? (EW Spoilers)

[YukikoKurosawa]

In this version of the Final Days the people are literally transforming into their greatest nightmares. All it means when we see a Mirrorknight Blasphemy is that whoever turned into it was exceptionally afraid of Mirrorknights.

Considering the amount encountered in EW that's a considerably large amount of people from Thavnair who have a deep-seated fear of a very specific monster that is rarely seen in the game and absolutely nowhere to be seen in Thavnair. So rare in fact that I forgot they even existed until I saw them as Blapshemies in EW and thought "hey wait a minute.....".