The point is that K factors have no real purpose, since EVERYONE flies the same maneuvers, therefore the same degree of difficulty for everyone for the entire pattern. The K factors have made everyone concentrate on the back end of the pattern.
It is even possible for a judge to cheat by going up or down 1/2 point on the high K maneuvers, and not even be noticed... AI have seen this happen in person.
As suggested d above, we have more stunt fliers in the USA than any other place in the world. Our system works.