Now I believe this pattern, expressing the results of a passionate search process and being confronted with the requirement to "teach" as a result while not having a body of knowledge to pass on, is actually quite common in highly creative people involved in similar processes. From some cursory reading it seems to me something similar was the case for Moshe Feldenkrais; in his case, the insight that he taught a "method of no-method" was somehow preserved, but is still at odds with the fact that there is now the "Feldenkrais method". It would be interesting to know whether there are other examples.
Another one just came to mind: JL Moreno, creator of psychodrama, at his time influential in psychotherapy, theater, and sociology: apparently a wildly creative and charismatic character, and very effective therapist (also: an obsessive womanizer with megalomaniac streaks...), to whom the "method", that was created from what he did (though great in itself), somehow does not seem to do full justice - especially the aspect that students try to this day to extract a "theory", which he supposedly developped, from his often unsystematic and idiosyncratic writing in order to make him fit socially acceptable notions of therapy. Or so I take it...