That said, I would bet the same thing for judo and wrestling. IMO the reason for that consistency is the continuous testing from competition, which is just as popular for judo and wrestling.A lot of the advantage of recommending BJJ for police is its consistency. You can move around. Drop in to a BJJ school and it will be more likely to good than bad.
And although i think there are elements that are not the best progression for police. The methods do work.
Same reason I ride a KLR pretty much. It is just that reliable known quantity for someone who may not really understand what he is buying.