I believe this is the point you are making, but it's worth clarifying that NDT is a technically sophisticated astrophysicist who is best known for his non-technical communication targeted at a non-technical audience. Part of the genius of Feynman is that he could communicate to a technical audience in a way that was still accessible to the lay audience. Tyson can't communicate to both groups at once like Feynman (or Tyson's mentor, Carl Sagan) could. It's a rare gift.