Well I think the reason there is no ground fighting, is because your not suposed to wind up on the ground. The punches to the face, probably has something to do with the head being a hard target. The thing about sparring, totally untru. I went to my dojo on sunday. They can choose at what level they want to sparr, and what leverl of realism they want. BBJ probably could give a lot of students a probelm, because they weren't trained to deal with ground attacks. In the concept of self defense, how often is the average joe going to start doing BJJ on you?