I think the original reasoning was to take care of dead sticks. That could be easily fixed by leting the pilot fly again at the end of the round the manuevers that he could not fly because of the equipment problem. AMA allows to re-fly if the pilots has a mid-air or radio problem. Why not allow the same rule if there is other technical problem that is not under pilots control? In this way all rounds could count for the final score.

VB