The basic goal of training should be to teach a skill thoroughly enough for the student to be able to repeat the objective away from the classroom AND self-diagnose/correct mistakes.
Training only is the down payment on a skill or technique. Practice is the cost of ownership. Once the objective has been learned, it must be repeated, practiced again and again until it becomes a subconscious, reflexive response. Only then can you truly claim to "own" a skill. Training a skill to be reflexive means instead of thinking your way through a technique, your brain power is available for high speed, life and death problem solving.