In support of spinning big, if every single person can do a nice smooth cab 7, but only the top 10 in the world can pull a smooth cab 10 or 12, then I think that's what they should show. Maybe not off all the jumps, but the pro's need to show how they are better than everyone else, and nice 7's and 5' off every jump doesn't really do that.
The first time I saw Sammy's run I thought the last hit was a cab 9 at first. The X games will be a little differant because its invite only so they jumps can be bigger for smoother spins, but this is an Open, so the course has to be a bit more suitable to people who aren't full on pro's.