That might make some sense if all the older Karate styles were the same, but they are not. You would have to accept or deny each style on a case by case basis otherwise you are just making sweeping generalizations.Whoever discards Shotokan as being rubbish, yet promote some other Karate style of the same era, is really making a distinction without a difference. Sure, Kata differs greatly between styles, but how in the world are Kata nuances related to Self Defence? You either accept these older Karate styles or you don't. At their core, it's all Okinawan/Japanese Karate. Period!