You misunderstand. Very little if anything is known about the how the NT came to be. The original manuscripts are long gone and the best we have are copies of copies of copies well after the originals were written.
The history of the modern LDS scriptures is in stark contrast, i.e. the original authors are known and the history of the scriptures to the current date is known. That cannot be said for any book in the Bible. Mormons know no more nor less than anyone else about the creation of the Biblical text. So your references to Bible classes are meaningless to the point at hand.
Very little if anything is known about the how the NT came to be.
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That is not true, the books I listed above give very good evidence of the transmission and canonization process. Peter Brown has also done a lot of work on the Christianize process as well. This is not an area of historical mystery.
The history of the modern LDS scriptures is in stark contrast, i.e. the original authors are known and the history of the scriptures to the current date is known.
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That is laughable since there is no “gold plates” or mss support for the Book of Mormon. We do have the Book of Abraham papyrus but those prove the BoA to be a fraud.
Unless of course by the ‘original authors’ you mean Joseph Smith.