I think it is worth noting an important distinction in the “Catalyst Theory.”
Simply put, the Catalyst Theory posits that
1- the BOA as we have it in the PGP was not found anywhere on any of the JS papyri, surviving or lost.
2- JS received the papyri, became interested in Abraham, etc., and
3- thereupon received a unique revelation from God of the translation of an ancient authentic Abraham document = our Book of Abraham.
Note that David Bokovoy does not subscribe to the Catalyst Theory. He agrees with the first two points, but not the third. Bokovoy’s position, if I understand him correctly, is as follows:
1- The BOA as we have it in the PGP was not found anywhere on any of the JS papyri, surviving or lost.
2- JS received the papyri, became interested in Abraham, etc., and
3- thereupon God inspired him with a pseudepigraphic tale of ancient Abraham, which is in reality completely a 19th century fictitious creation, and has nothing to do with the ancient Abraham (if there even was such a person). It may contain important spiritual truths, and can be accepted by Latter-day Saints as the word of God.
Point three is a very important distinction, and the essence of the dispute.