What's true will never contradict what's true. Article 2 of the Belgic Confession, based on Psalm 19, Romans 1, and several other texts, declares that God has given us two reliable revelations: the words of Scripture and the facts of nature. Thus, it would be impossible for the facts of nature ever to contradict the words of the Bible.
The creative process is not like a situation where you get struck by a single lightning bolt. You have ongoing discoveries, and there's ongoing creative revelations. Yes, it's really helpful to be marching toward a specific destination, but, along the way, you must allow yourself room for your ideas to blossom, take root, and grow.
What is driving the tendency to discount Joseph Smith's revelations is not that they seem less reasonable than those of Moses; it is that the book containing them is so new. When it comes to prophecy, antiquity breeds authenticity. Events in the distant past, we tend to think, occurred in sacred, mythic time.