I too struggle with this, and probably will continue to do so until I get to judge myself and actually experience a rib that is a true 9.
As it is now, I have turned in ribs that scored well once and I genuinely did noy care for the texture at all. Perfect bite mark yes. Enjoyable texture......absolutely not.
Why the heck any judge would enjoy the feel of there teeth ripping through strands of connective tissue that have not completely broken down is beyond me. I don't like fall off the bone either, but I think a whole bunch of folks have convinced themselves that they prefer something that they might not actually prefer. Just so they can get some kind of warm fuzzy feeling from seeing a perfect half moon bite mark.