It's a talking point, used to describe him as a player. These writers/commentators have to say something about each player. Just quoting stats would get old really fast.
When you're talking about Wiggins, you're going to talk about his off the charts measurables and athletic ability. When you're talking about Georges, they're going to say he's not terribly athletic or above the rim player, which is ALL TRUE.
They're not comparing him to golfers or the general public. It goes without saying that a below average D1 basketball player is a better athlete than most, but relative to the top 50 players in college basketball, Georges is one of the worst athletes.
Not a knock on him, in fact it is actually a compliment, that he gets the production that players far more athletic than him can only dream of.