That's insane. It's been suggested he was passed over because he's of Chinese decent. You'd think the teams would be climbing over themselves to get a good player with a Chinese name, because that's a way to get tens (or hundreds) of millions of Chinese fans.
He's not the next Yao (since he's American born, for starters), but he'd still be worth a lot purely for the fans he'd draw.
While "hundreds of millions" is often just hyperbolic thinking, Chinese are keener on the NBA than Americans. Unless the world cup (soccer) or Olympics is on, it's the only spectator sport worth speaking of. And Chinese love brand-name goods, and sports memorabilia, though many are forged.
Plus, he's a good player.