I dont disagree with your thoughts on him. Crazy how some people act. But the closed/open is not always the main reason for slicing/hooking. Coming over the top is one of the most common issues with the swing and technically would be coming in closed (face angle) and yet still producing slice spin. Its because the ball is being spun sideways at the angle it is being hit. Most with OTT, either slice or pull the ball depending on the spin they are imparting.