The proper method requires a measure of patience and personal discipline, but oddly does not take any longer to learn than the commercial method. The difference is the latter requires the oversight of a supremely knowledgeable teacher of proper anatomical movement within the context of the learned activity. In sports, they call them coaches.
You mean...it doesn't dismiss Kenpo to the Socratic Method, and actually requires an accomplished instructor that precisely instructs and fine-tunes every move of their students?
I so want some of this blashemous instruction.