To me, it isn't a minor thing. It is a major inaccuracy that diminishes my ability to fully enjoy the mod. I'm not "cutting off my nose to spite my face." I'm choosing to play something else, which I will fully enjoy, until the things that I don't like are addressed. If they are never addressed, then i will just keep finding other games to enjoy, without any irritating idiosyncrasies.
Still, I really look forward to playing this mod as I think CK2 is the perfect platform to represent this world in a strategy game. I'll just wait until tribal governments are added in to better fully represent the varied and interesting setting.