The Overview seems rather bold and powergame-y. The King holds all the power withan iron fist - no way could a quarter of the population fail to support him openly without suffering severe/lethal repercussions.
Edit: It's also wrong; the King has been ordering the GRN to attack mercilessly for years ever since they broke through Council lines in Languedoc. He has not attempted to reason or negotiate surrenders - he has merely offered certain groups the opportunity to capitulate without further violence.