I would say Magic was the only 6'9" player smart enough to average 3.4 steals per game in a season. magic is the only 6'9" player ever smart enough to play point guard.
He definitely was athletic compared to normal people, but compared to other NBA players, he was not particularly quick for a guy who is 6'9", even in his era, he was definitely not particularly strong, he couldn't really jump, but he was coordinated and smart.
Vince Carter was athletic, you don't seem him leading the league in steals either, neither did Charles Barkley, Wilt Chamberlain, David Robinson, or Hakeem Olajuwon. Tracy McGrady, Kobe Bryant, these are all great athletes, but they don't lead the league in steals. However, we have the John Stocktons and Jason Kidds who do. While they are great athletes, again, compared to us, they are average, or even below average athletes when compared to NBA players.