How Do We Think About the Bible From a Philosophical Point of View?
Well, I don't usually trust mainstream papers either. I only posted the DM link because I thought it presents the issue in a clear and convincing way without resorting to too much speculation. There are other articles in National Geographic, Biblical Archaeology and other publications.
The point has been made by other historians and Egyptologists who have observed that when two populations share a geographical and cultural space, their national memory may to some extent coalesce to form a common narrative and in most cases the smaller and less powerful population tends to adopt the narrative of the larger and more powerful or influential one.
Certainly, the sumptuous palaces and temples described in the OT are more consistent with what you would find in Egypt than in a small Hebrew kingdom. King Solomon's legendary wealth, his many wives including the Pharaoh's own daughter (1 Kings 3:1), etc., tend to lend credence to an Egyptian interpretation of some OT accounts.
But I agree that philosophers, and people in general, should try to see what is behind the surface of mainstream narratives and in many cases the findings are very interesting and enlightening. And I believe that this is what philosophical inquiry is about, even if sometimes it takes "detours" to the general bus journey to realize it.