If you are open-minded, you would start from the fact that the Bible is an anthology. Anthologies are by definition collections of writing chosen by authorities. Rabbinical judaism omitted many works by applying certain standards. Protestants omitted works that Catholics include. “Banned from the Bible” is a sensational title implying that there was something fishy going on.
I’m not trying to start an argument here, yes the Bible is an anthology of many works. A lot of Fundamentalists associated with the religion would say otherwise and still treat every single word as a literal interpretation, which is scary in my opinion.
Back to the story, it would unravel the beliefs of Millions if these new books to the Koran were accepted as “real” not that they ever stand a chance of being deemed so, at least by anyone with religious clout. Islam has no religious Hierarchy really, making “experts” or equals to the Pope in Catholicism non existent.