Tape drills are often defended as a simple way to introduce movement. But if the purpose is to explain a skill, then the explanation should happen in the environment that makes the skill intelligible. Tape drills break perception-action coupling and remove the meaning for movement.
If I want to teach someone how to slice a doorway, the wall and doorway are not optional. They are what make the movement understandable. The wall hides information. The doorway structures what can and cannot be seen. The room geometry determines what the learner should attend to.
Remove those things, and the movement becomes abstract. The learner now sees a body moving through empty space, but the “why” has disappeared.
Perception-action coupling means that movement is continuously guided by information from the environment. In CQB, you do not simply execute a pre-planned movement pattern and then perceive afterwards. The wall blocks what you can see. The doorway opens or closes visual angles. A corner hides information. Your movement changes what becomes visible next. In other words, what you perceive shapes how you move, and how you move changes what you can perceive. That loop is central to the skill. If a drill preserves the movement but removes the environmental information that should guide it, it is no longer training the same problem.
That is why tape drills may be worse than merely incomplete. They may actively teach the learner to attend to the wrong thing: the external shape of movement instead of the information that should guide it.
