Oh... Still... They did see the Daemonrexa as unholy, foul things that do not deserve an honest fight on the battlefield. But you could be right. To a race of warriors, assassination is just downright villainous yes? Even if you're trying to get rid of a whole race of demons? It'd be interesting what kind of cultural influence my Daemonrexa would have on your race despite that huge time gap.

But then again, alot of classical works are actually just oral tradition written down, copied and recopied, until we end up with what we have now. In fact, the story of Noah's Ark had roots in the Epic of Gilgamesh, which itself have roots in an even older story, and that's just going into the written stuff. We'll never know just how many times that story's been passed around mouth to mouth... D: