The Rabbi used a method that does appear to be simplistic. I think he had a reason for doing that. He wants people to actually read it and understand it. If he had used the scholarly method, the low-information folks would never read it. I almost put it down due to the method he used, but I stuck with it and finally the combined weight of the evidence passed the level of disbelief. Could not be coincidence. What God revealed to Israel was for the purpose of forming a nation. Maybe we should try to listen.
Indeed, he explains his reasoning in the interview.