That's pretty much exactly how I saw it. Tana and Naito are the genius part, Ibushi/Okada/Kenny are the athletic.
His main point was that Miyahara never does anything too spectacular (as in extreme high spots/bumping or even super stiff offense) but all his matches are excellent. He compared him very favorably with Flair and Dave loves Flair so he certainly thinks he's a great worker.
As an aside a mailbag question asked Dave who had the worst match with Flair and Warrior came up. Flair told Dave that he tried to have a good match with him but couldn't. The image of Ric on a big brick phone telling Dave how much Warrior sucked
Who had the worst match with our hero Misawa
Or Kawada/Kobashi. Hash has a fair few iffy matches in fairness just down to various political strife. Tenryu too.