I don't really know, but maybe in 2006 did not exist this real-time-online-war-games so abundant this times!
Don't misunderstand me, BM is funny!!! (if not, I will not be here!) But I think it could be good to diversify the game-possibilities of the 'standard' noble... and maybe to give some power-advantages to some positions... It's really strange than in some realms the council positions can be left vacant!