As a response to point 7, there is an event in the game where a new soldier breaks down and the commander addresses him after fighting. Its not unaccounted for in the game. Even more, competence at the job of hacking and slashing is heavily reflected in the starting stats of the various professions. That fisherman has a much lower chance of holding his own in a fight than either a hedge knight or a raider.
Having spent time in history academia, I’ve gotta say that a LOT of these other “facts” are incredibly suspect. I’m inclined to discount most of them, especially since there is little to no citation.