Re: Saito Sensei & the no-hands throw
People are able to do no touch throws because they understand how to take up slack. The mechanics may look like small movements, but to the uke, the feeling is big. Unlike a beginner, who uses big movement, but has a small feeling to the technique.
Not everyone gets into the psychology of conflict, but it's safe to assume an opponent will have both a mind and body. And since the mind leads the body, it's easier to led their mind than struggle with their body.