Rick's Side Notes for Black Belt's No Touch Article is quite a nice overview of his thoughts regarding "no touch" knockouts. But this is not why I have brought up this controversial skill - given that dim mak, chi gun, nei gung, no touch knockouts are way out of my domain of expertise ... and I've got little time to pursue it currently.
What I thought was very insightful was Rick's discussion of the role of the uke or partner during martial arts training. To learn the skills that we need in Taekwondo, it is really important to work out with a partner who can help you learn. Meaning when you're busy trying to acquire new skills, the partner is helping you in terms of the speed of his approach and his willingness to go with the flow of your learning speed. However, the partner also has to recognise that to learn the technique correctly, he needs to introduce some resistance and some randomness when you're starting to get the technique. Meaning he should start to attack with differing speeds, sometimes changing angles of entry, height of the attack, levels of relaxedness ... but all appropriate to the stage of learning the student is at.
One good uke is priceless. Better than a team of different opponents (though there is undeniable value in your practicing with opponents having various differing body habitus).
It is the martial arts instructor to note that a cooperative uke, while essential, will also inculcate habits and assumptions in his partner. The student needs to be challenged from time to time and to understand the environment in which he is practicing in.
Traditional Taekwondo Technique Workshop