I think it's just a bug, whether its just a display bug or the morale is actually messed up I'm not sure. I had this happen to me as well, I had Paladins, Inquisitors, Priests, and Archers but only 2/4 had the proper morale boosts. When I moved them around, sometimes they would keep the morale and otherwise the morale would stay with whatever spot the army was in. So bowmen are human (as stated by the race icon in the stats window), just the morale doesn't seem to work properly all the time so lets just hope they patch it up soon!
|