His is a nice theory but it is incorrect. It is like many such speculations that are turned to by the many non-believers among the academic community seeking prosaic explanations usually involving an act of nature, so-called, to explain away an otherwise supernatural event being described. These are almost always truly supernatural, being an otherworldly event induced for a purpose to wreak havoc, which is then blamed on God wanting it to happen, and God’s vengeance in action, and so on. The events recounted here were true miracles and were an example of divine intervention specifically to arrange escape, rescue, and further survival of the Israelites, as recounted in the Scriptures, so this was very definitely a divine intervention, from first to last, to allow the escape from Egypt, as recounted, and the events involved were divine orchestrations.
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