Other than Paul or Keb, who has the right to say they are qualified to teach NS dance? Maybe we should have an NS jury to certificate.
Those two got into it organically, where gripped by the music, uplifted. Unless you understand the emotion of what the music means... It's the music that moves you, in through the ears and out through the feet.
Dave2 found it worthwhile to have dance lessons from Sharon or whatever her name was and that's a good thing. However, someone who has only been into it a couple of years, teaching someone else, one two three kick, one two three kick = Uninspired dance floor fodder.