Watch more of Stan's videos. He has a shot very similar to this that he cuts in the corner, then banks it into several pockets.
Thanks, I'll try to find it. No doubt Stan is a very good player even before CTE. Even if the 9 ball were not blocking the pocket, being able to cut the ball cross table makes the shape on the 8 ball like falling off a log whereas the near straight in and force follow with inside to get down to the table and to the right of the 8 ball has to be hit at almost break speed and that can easily cause a miss.