As long as people don't confuse knowing of a concept or Kenpo Principle with actually having ingrained it so that it fortifies or otherwise enhances their application. When I see someone that is fighting exceptionally well, I notice the concepts and principles at work in everything they are doing and when I see someone that is fighting ineffectively I see the concepts and principles missing or being bastardized. In either case the knowledge and awareness of these concepts and principles are not as important as their actual manifesting during action.
If a guy throws a punch and he has no back up mass, no torque, very little momentum, poor structural alignment, holding his breath, head looking down and eyes looking away, body floating up and footwork over pivoting, upper and lower body disconnected and out of sync, tension long before impact (breaks on), poor angle of incidence so penetration is instead dispersed over a wide surface area, no limitations on his opponents dimensional zones such that they can respond and defend his punch easily, has no mechanisms in place from preventing counters, all his vital targets left wide open, center-line offered up on a silver plate, piss poor target selection and so on, Inevitably this guy would be destroyed if his opponent has any skill at all. If the reverse is true but the puncher has no knowledge of these things but they are still ingrained in his application that would be enough to be effective. So in that sense knowledge of it is not as important as being able to manifest it during the moment of truth.