One might wonder why Mormon took the time to give us the detail of Moroni's long epistle and Pahoran's reply. His purpose, assuredly, was not to show that Moroni made a mistake in his hasty accusations. Rather, it was to show what Pahoran termed 'the greatness of [his] heart.' The recurring theme of the war section of Alma is that Moroni was a great man, for if all men had been, and were, and ever would be, like unto Moroni, behold the very powers of hell would have been shaken forever (Alma 48:17). So we should emulate Moroni in all respects and be thankful for the details given by Mormon which demonstrate that amidst all of his greatness, Moroni was only human.
Gordon B. Hinckley
"I have worked with seven Presidents of this Church. I have recognized that all have been human. But I have never been concerned over this. They may have had some weaknesses. But this has never troubled me. I know that the God of heaven has used mortal men throughout history to accomplish His divine purposes. They were the very best available to Him, and they were wonderful." (Ensign, May 1992, p. 53 as taken from Latter-day Commentary on the Book of Mormon compiled by K. Douglas Bassett, p. 524)