Franz Keeps ennemies alive after battle and I think I know why

Franz keeps narrating with ennemies alive, surprised, fleeing, but NOT DEAD as we expect it after we killed them in combat. I think I know one of the reasons: Encounters note.

If they are an Encounter note during battle affected to one ennemi (he is afraid every turn for example) even after we killed him, his status is now : dead, afraid. So after victory, Franz will keep making him afraid, because of that encounter note. But I said it’s one of the reasons because even outside of Encounter notes, Franz keeps keeping sommes enemies alive for some reason.