You might wonder, what difference does this make? I think it is significant in understanding and trusting the veracity of Scripture. The Israelites were certainly familiar with the account of crossing the Red Sea. Why not just say the same thing happened? Because these are eyewitness accounts. They are explaining what they saw and experienced. And it was different.
I’ve read archeological reports indicating that at Adam, where the Bible says the water piled up in a heap, there have been other times in recorded history where an earthquake or landslide has caused rocks to fall, blocking the flow of the Jordan in just this way. I’ve also read various explanations for the Red Sea crossing, including stories of finding ancient remains, believed to be the chariot wheels of the Egyptians. It’s tempting to flock to these stories as if they give proof to God’s Word. The stories are interesting, but the truth of God’s Word does not depend on the discoveries or understanding of mankind. Too often, we rest our faith in modern stories — and if those stories turn out to be false or hoaxes, our faith is rattled.
God may use natural phenomenon to accomplish His purpose at times. At other times, He may supernaturally intervene to miraculously bring His will to pass. God is sovereign over the wind and the waves, so even nature obeys.