A very excellent point, James! Aside from the issue of the last 5 books of the Bible being regarded as uninspired by period Lutheran Reformers, we, as you offer, must also deal with the fact that not just some of the Epistles, but the books of Peter, Gospels of Matthew, Mark and John, are also pseudepigraphical works, aka. FORGERIES. They were not written by the apostles whose names they bear.
Thanks for the book link. Feel free to check out my own book on the topic as well, because I do cover these in greater detail. The book is available for free on my website as well. KeithMichael.org.
Thanks again for the great response!