Some people object when I say LDS scholars have suppressed Letter VII, but you can look at FairMormon and all the publications by BYU Studies, FARMS/Maxwell Institute, and the rest, and you won't find it mentioned anywhere.
To their credit, BookofMormonCentral have put it in their archive, but then they repudiate it with their KnoWhys. Their affiliates uniformly reject Letter VII, although they do it so obliquely that no one seems to notice.
So it's no wonder AskGramps never heard of it.
Whether ignorance is a defense is up to you, the reader, but in 2014, AskGramps pulled a full Mesomania and outright declared there are two Cumorahs!
The "two-Cumorahs" theory was developed by RLDS scholars in the 1920s. LDS scholars embraced the theory over the objection of Joseph Fielding Smith, and now AskGramps is relaying it to new generations. http://askgramps.org/hill-cumorah-really-new-york/
I bring this up because I still meet a lot of LDS members who have no idea that our LDS scholars are promoting the two-Cumorahs theory, thereby undermining the credibility and reliability of Oliver Cowdery, Joseph Smith, and David Whitmer.
IMO, AskGramps out to reconsider repeating the Mesomania-inspired theories of current LDS scholars. (Needless to say, I think the scholars should reconsider their theories, but that seems highly unlikely, given their years of allegiance to the two-Cumorahs theory. See the Mesomania book and blog for my thoughts on why this is.)
Check out what AskGramps has to say: