Modern scholarship has also shown that cultures based on oral tradition and oral histories can transmit information reliably for multiple generations.
How Reliable were the Early Church's Oral Traditions? - Greg Boyd - ReKnewAnd, as the articles point out, skeptics assume that Israel at the time of Christ was largely illiterate. Growing archaeological evidence contradicts that assumption. In a culture where literacy is widespread, it is likely that multiple copies of the Gospels existed. So accurate transmission of the Gospels would be expected, rather than surprising. Additionally, by the time of the earliest Gospels of which we have physical copies, churches already existed around the entire Meditteranean and, from the writings of the Church Fathers, were using the Gospels in their services. No one said in 200 or 300 AD that these "new" Gospels, that Sapper and other skeptics claim had just been written, weren't the right Gospels.
To the contrary, from the very earliest, the best evidence we have is that the Church followed the teachings of the Gospels precisely. 1 Cor. 15 is acknowledged by all to have been a church creed that was developed within 2-3 years of Christ's death and resurrection. It and the Gospels are in accord 100%. So I don't know what Sapper and the skeptics hope to accomplish by denigrating the Gospels. They still have that Church creed which teaches of Christ's resurrection almost immediately after his death. That creed "proves" that the concept of Christ being the Son of God and that He rose from the dead was not a late invention.
And folks didn't start questioning the authorship of the Gospels or the Mosaic writings because of scholarship. Instead, when society started to turn away from Christianity and a belief in the divine, modern scholars gave them the rationalization that they desired.
Anyone who reads modern "scholarship", such as form criticism, on the authorship of the scriptures and doesn't see that it is total hogwash has no basis for casting skepticism on Christianity itself.