If I have missed the meaning of Bunkai, please ignore. We start application of kata, during green belt. At this point we would be learning our 8th and 9th katas, although 5 have the same footwork with different blocks/strikes. Here we would start working our first kata with attackers. We are required to present all kata with attackers for our next grading. I must say it was like learning the kata all over again and at the time wished we would of learned the kata with the attackers in the first place. Even thou we did receive verbal/physical explanation of what we are defending/attacking in the first place, at this point seemed inadequate. But thinking about it now, we all need time to learn a skill and somewhat become competent before having to apply that skill. This maybe would be a little overwhelming for young kids and some adults, many who don't take to conflict very well at this point. I think this or a similar approach is one way to really start accelerating the exponential curve of the art.