Agreed. I had assumed that Jaffe's role as editor was similar to Random House's role as publisher in the sense that neither would be expected to change the facts of the story, but that does not appear to be the case.

So maybe Jung didn't believe that his library books sometimes exploded and perhaps the original ad hominem didn't apply. However, it's also possible that Jung's other statements went through the same corruption process that the exploding books story did, so the ad hominem does cast doubt on the truth of other things he is claimed to have said, even if Jung didn't really believe in exploding books.

I'm not much interested in tracking down whether other statements attributed to Jung were manipulated by a third party.