Oookay. You seem to be defining 'legitimate branches of the martial arts' as whatever you decide is legitimate, and 'martial artists' as people who never use anything else. Except Misty and her gun and cyborg arm, presumably.
So... would a 'martial artist' be allowed to use shuriken, and how do they substantially differ from batarangs? Are martial artists not allowed to drive cars into people? Are they no longer allowed to intimidate? I can't believe you reckon intimidation makes you not a proper martial artist.