I still have not read one valid point contra.

It's not traditional? I wouldn't bet my money on that. I remember Chris L talking about an old coticule he bought that had a groove running at the side, from where the previous owner used to run his edges in a breadknifing motion. I can imagine a home honer, or even a barber, getting a chip in the edge or developing a frown over prolonged time. I can imagine that person bringing his blade to a qualified razor sharpener to restore it in good condition. I wonder what that qualified razor sharpener would have done. Send the razor to the factory for a regrind? Get a straight (or a nice smiling) apex on it and recreate the bevel? (Thanks for the "apex" word, Utopian)

It removes more metal than necessary? When used with insight, it clearly does not.

True, it does not solve spine problems, but it does not claim that either.
Honing with tape on the spine does not solve spine problems either. I suspect that honing with tape is not very traditional. Let's rule it out.

The only thing that goes against it, is that it, from all things newbies might try without properly understanding what they are doing, is the most counterproductive.

BTW, I feel this thread should be moved to the advanced honing section.

Bart.