nah mate, it IS exciting. any play can get a TD, it's just that you NEED 10 yards (at least). the start-stop thing = tension and release. it's like with football...people who can't see the excitement just fundamentally don't understand the game.
But there's no chance of the defending team scoring 'til they've stopped the opposition moving 10 yards 4 times? Or 'til after the attacking team has scored presumably, which ever happens first?