Yeah, that's another stupid thing he said. Anything that anyone says about anything manifestly renders that thing of which something was said a thing whereof it is possible to speak. So point 7 is a vacuous tautology.
(Or maybe what he meant was not what he said, in which case he probably failed to follow his own rule.)
(Or maybe what he meant was not what he said, in which case he probably failed to follow his own rule.)