It is out of a desire to help the entrants learn gunbuilding that the judges volunteer their time. In the interest of processing fifty to ninety guns in a day, the judges have come up with a universal system by which to judge the guns. yes, it has certain flaws, in that it does not accommodate variation within a school of building, rather it compares your work to an 'ideal gun'.
In my mind, you go through this process, you learn what it takes to win, and you move on. Take it as an educational tool. It seems to me, that if you really want that ribbon, you must learn the ropes. Not that it is the right way or the only way to build a gun, but in order to get the prize, you must get all the details right in that 'ideal gun'. Whether you stay with this style or not, you will have learned valuable lesson along the way, as Kentucky Jeff pointed out. Use the system for the education. You may not agree with the teachers, but you will get an education. That, to me, is the bottom line.
Tom