Let's question that. Why? Why would someone who did not directly know the actual authors themselves, but lived in a different region of the world, a hundred years removed after the texts were written, have better insights into authorship? Things passed on by tradition is not the same thing as a critical literary analysis of the texts. The tools of modernity are an order of magnitude more revealing than the tools of premodernity.
Think of it like the way people reasoned about the moons of Jupiter prior to the invention of the modern telescope. Prior to that we speculated based upon what appeared to the unaided naked eye. A limited amount of information was available, and we did our best. Inventive and well-reasoned logic arguments were used to make the case for what they believed to be true, such as there must be five moons because there are five elements and five orifices of the body, but clearly they made mistakes based upon that limited vision.
Reliance upon tradition alone, while it has some value as far as traditionalism goes, is not the same thing as actual critical scholarship. Modern scholarship out-contextualizes premodern scholarship. We simply have better tools available to us. Accepting modern scholarship does not mean you deny religious faith. It simply means you rethink how we once imagined things to be in a new light. That's all.