I'm with Keith on that one. Also, the situations described aren't necessarily 'zeros' just major downgrades. Back in the "old" days before turnaround, judges could confer (briefly) between maneuvers. Actually, there was more flying time spent between maneuvers than performing them... anybody remember Dave Brown's mile-long split 's' between maneuvers?? Aresti style flying is more taxing on the judges (we only fly one flight at a time - they have to judege and remain focused for an entire round). I'll admit to 'correcting' errors in between maneuvers; rarely noticed by the judges as they're trying to provide the score for the previous maneuver. If I screw up badly enough that I have to make some kind of major correction between maneuvers or as part of a subsequent maneuver my flight score always reflects this. Not necessarily on the original maneuver that was screwed up.
Hey, it took Maradona more than 20 years to admit that his 'hand of God' goal was actually his own hand and that was in the World Cup. Nobody is going to go back and change the result.
If everybody flew perfectly and judged perfectly we wouldn't have anything to complain about...

When all my equipment works perfectly at a contest and I don't win... I guess I need to practice more!!
-Will B.