Statistics is irrelevant to an individual: the ideal is to be happy while being prepared and demonstrating to others how to do that, always. The purpose of a martial art is to train the mind with sincere realistic training, rather then the comfortable compliant training thus limiting a dojo into a moving-yoga-tumbling-social-club. Training joyfully with tough training forms the mind to handle all challenges, in all aspects of life.
Right. No argument there. I'm just questioning the value of the kind of training that prepares you to succeed in fights, specifically, relative to other kinds of "tough training." There's a wide spectrum between "full contact sparring" and "yoga with tumbling." As any competitive athlete knows, you can develop quite a lot of mental toughness without ever getting punched in the face.