While I agree with your premise, DD, I don't think immediate recall of a kata is necessary to understanding. For instance, there are versions of the classical forms of NGA that I don't practice (I introduced alternative forms in some cases). When I visit another school, I often ask a senior student or the instructor to quickly show me those, so I can recall the sequence in them, if we are going to be practicing them in class. Once I'm reminded by that quick run-through, I can provide good feedback to students (sometimes the class instructor will ask me to give students feedback, as a guest instructor to the class). I know those forms inside and out, but can't always call them up exactly from my memory without a visual cue first.
If they’re not part of your curriculum; not required knowledge, then forgetting them is no problem.
If they ARE part of the required curriculum, then there is a problem.
I don’t expect students to remember the Chang Hon forms. Unless they’re pursuing KKW rank, they’re not expected to learn the Taegeuk forms.
But you can count on them to know everything that’s part of the required curriculum.
Sent from my iPhone using Tapatalk