I don't understand why "IS" is anything different from "well developed skill and trained responses" Elite athletes "look" relaxed when they're setting world records - it's not magic, it's very well developed movement patterns, being able through intense, focused training to sense and anticipate others' actions - Gretzky or Crosby in ice hockey, Yamashita in judo, Ueshiba O-Sensei.
Of course it's not magic - no one, including Dan, has ever said that it is.
Forging a Japanese sword isn't magic either, but the chances that you'll be able to forge one with no knowledge of forging by imitating the movements that you see in a documentary without explanation are....vanishingly small. It's not quite as simple as just banging on a piece of steel with a hammer.
Some things are done differently than they're done in ice hockey, or in Judo, isn't that true for any physical activity?