I think you're right. We, mortals, just can't tell what these demigods have in their crazy minds ;p

ps: I don't know if he made any personal comments about iphone skins or not, but I heard the Apple Store (world wide) have stopped carrying screen protectors of any kinds. I guess they want to showcase the oleophobic layers put on all their gadgets... and maybe they feel the hard-glass screen is scratch-resistant enough on its own.