I just watched Willie's bank shot segment from that. Obviously he oversimplifies a great deal lol. The first several cross side banks he actually uses speed to shorten them up because he has those shots set up such that they are not "mirrored" by true geometry, and he relies on the speed to shorten those up. But on the plus side, the way explains how to calculate the angle, he is actually accounting for the shortening effect because his geometry is from the cue ball at one diamond in the middle of the table, whereas the object ball is going one diamond up into the pocket all the way across the table. He just neglects to mention that his method of aiming there is making that adjustment.
Next he puts the object ball closer to the cushion and he again describes how to figure the angle the same way. That I would tend to disagree with -- balls close to the cushion have even more of a tendency to shorten than they do from out in the open, yet in this case he still describes what amounts to as equal in equal out. We all know, in real life on everything but Kleber (now apparently called Klematch or something like that) cushions, that is not always true -- in fact it is usually not true! He does mention "speed" in passing at least
Then he shows the cue ball moved down to where it would be a kiss, and he says you can't make it from there (because of the kiss). Well what about placing the cue ball somewhere in the eight inches in between from where it goes naturally to where he showed was obviously a kiss? That's where Taylor's knowledge and stroke would have made more banks working further down to where the balls eventually kissed.