Of course you are right about the economical facts. I was just talking about sure BK.
Soviet aircraft can´t be good in this game because it doesn´t reflect the fact that during their era they didn´t have a competition, fuel for them was free and there were no "airlines" flying it, only gouvernment departments.777´s are bad because we can´t fly additional cargo.
Small birds in Western hemispheres (like CRJ) were often used on routes subsidized and regulated by gouvernments, leaving them without real competition. So, game-wize, they are "bad birds", that´s right.
But this shows one of the problematic parts of the game, where it is as real as it can be about the technical facts in some part and being impossible to reflect the correct economical/political situation around them, tending to be a bit unbalanced likewise.