yes, its basically because the average mma watcher (the ones that boo constantyl during ufc) think that mma = UFC and visa versa.
they would never watch pride, kotc, elite or any other org. Even if they know about them i dont think they would watch them. Its not what they want, the want the mainstream MMA, just like they probably listen to all mainstream crappy music and wear all the same mainstream cloths. Ok im getting a bit out of hand but you get my point!