Which is fine. That's why the other man at the elbow is there. He either ducks in or out to set an off-the-ball screen (for Yao or a perimeter player) or receives the ball to overload the lane. Yao doesn't have to be the recipient.
Teams are going to be licking their chops come playoff time at the simplest "strategy" of shutting down Yao with mediocre defenders, simply by fronting. The Rockets still play with zero composure when this happens.