I can agree with that. There's less difference - especially in the long run - between a sport-oriented BJJ school, for instance, and one that maintains more of a SD orientation. So long as neither wanders too far off to one side (SD school losing the focus on testing against a resisting opponent, which appears to be a key part of BJJ, or sport school getting too focused on preparing for the test of the competition and losing some of the functionality of the art beyond competition). I think the difference is especially small when we speak of BJJ, because its roots are on both sides of that spectrum, keeping it fairly well centered.That's fine. I think the idea that it must be "self defense" oriented is overstated. Not that it isn't a valid point, but really more that the distance from sport to self defense is a short one. Shorter. I think, than the distance between " self defense oriented " and self defense, in some cases.