After reading Kim's post, and recalling similar posts made here years ago, I think it comes down to Kim being ego-offended that the JTR modifications have become wildly more popular than "the conversion he engineered twenty years ago". It breaks his heart to see someone else's idea better received than his.
With all the different uses, different combos, and different owner preferences, I just don't see how anyone can make such blanket statements condemning one method, yet he acknowledges those differences, then makes those condemnations.
It's a shame his ego is so fragile.
John