I have no insider knowledge of the motivations of the writers and editors and, thus, can't comment with any authority.
That said, I've also noted that the Joseph Smith manual is an anthology of quotations, not an anthology of entire texts, so I'm not surprised or offended by finding only a partially quoted text in it.
I haven't looked at the manual regarding this matter, so don't know why the statement about Mr. Bastow was included, as it apparently was.
Had I been involved in compiling the anthology of quotations, I probably would have omitted the portion about geography because I don't believe that Joseph claimed revealed knowledge of Book of Mormon geography and because I believe, in light of that, that citing a geographical speculation of his in a Church manual would carry more weight than it ought to carry, and would distort contemporary discussion of Book of Mormon geography. (I understand that some here will immediately accuse me of seeking to suppress evidence that conflicts with my preferred view of the geography of the Book of Mormon, but that is not the case: I would insist on the statement being included in any discussion of the subject -- which the Joseph Smith manual is not -- and have no desire whatever to see the statement "suppressed." I'm forlornly certain that my position on this will be pounced on and distorted, but there it is.)
cksalmon wrote:There need be no conspiracy theory near to hand to see clearly that the editorial deletion was strategic.
I think that's likely.
cksalmon wrote:It seems a transparently shady tactic.
Having served for nearly a decade, some time back, on one of the Church curriculum-writing committees, I would have to say that I never encountered a case of deliberate deception or cynical distortion among my fellow committee members. Perhaps the moral character of the people asked to serve on such committees has declined since I was released.