its this sort of thing that gives karate and pressure points a bad name. to the doubters out there pressure points exist. there is nothing mystical about it, they are just weak parts of the body. for example, the solar plexus, the throat, arteries and veins. they can cause pain, certain ones can cause a knockout and some can cause death. the thing is that you all use pressure points every time you train. the whole touch thing doesnt work its full power and correct technique. every time you aim for the groin, eyes, neck thats what pressure points are. there are other less well known ones but its just a weak point that you hit or press or pull to cause pain or injury. this and the whole mysteries in kata are the same problem. the problem doesnt lie with pressure point or katas, it lies in bad instructors like the one on the video. katas do have different applications from the performance but that is for a few good reasons and none of them has anything at all to do with secrets, mysteries or mumbo jumbo. firstly katas are excercises. the fulfill a number of roles such as fitness, muscle memory and correct technique. when you see someone doing a gedan barai with 2 hands that is for excercise and to get the body moving the right way. the fighting side of kata comes a bit later, the reason that katas are not set out "as is" is because a katas application has to work. what works for me wont necessarily work for you and what works for you will almost certainly not work for me (i am quite small built). katas are interpreted how they work for you, not for your instructor or some japanese guy you've never met. its just that a very large proportion of karate instructors nowadays think that the old ways are best. karate was made to evolve.
sorry for going on a bit but i see in forums a lot of people finding problems in karate that dont exist. the main problem in karate is the instructors, not the system itself.