What is your own expertise or background in photographic analysis?
I see nothing here that would indicate any expertise in photo-analysis on the part of Mr Griffith. In addition, perhaps people didn't find his 'evidence' all that compelling, at least in the book that he is now giving away.
ABOUT THE AUTHOR: Michael T. Griffith holds a Master’s degree in Theology from The Catholic Distance University, a Graduate Certificate in Ancient and Classical History from American Military University, a Bachelor’s degree in Liberal Arts from Excelsior College, and two Associate in Applied Science degrees from the Community College of the Air Force. He also holds an Advanced Certificate of Civil War Studies and a Certificate of Civil War Studies from Carroll College. He is a graduate in Arabic and Hebrew of the Defense Language Institute in Monterey, California, and of the U.S. Air Force Technical Training School in San Angelo, Texas. In addition, he has completed Advanced Hebrew programs at Haifa University in Israel and at the Spiro Institute in London, England. He is the author of five books on Mormonism and ancient texts, including How Firm A Foundation, A Ready Reply, and One Lord, One Faith. He is also the author of a book on the JFK assassination titled Compelling Evidence (JFK Lancer, 1996).