"f it looks "different" than anything else and it performs well, then it would be worth a few extra points for originality if the goal is to score well at a contest. If the desire is to just be different, then it might satisfy the person doing it. Again, come up with the criteria for originality and establish an appropriate range of points and submit a proposal."
the way you made it sound, if someone tried an original design, but it didn't work well, how could it really be worth something.
that being said, same goes for someone having a bad day in the circle. could be an original idea, and work famously, but, he just wasn't "there" that day.
as for bias, some judge thinking "it'll never work" and dinging him for that, and then if same judge is also at his circle, and it does work, hitting old curmudgeon mode and not wanting to admit he could have been wrong, causing further point degradation.
thus the problems with subjective scoring an no real appeal process....