The reviews do not mention anything about the historical-cultural context of Genesis 1, 2 and 3 so I suspect that Rabbi Samuel does not delve into the Kushite context of Abraham's ancestors. Nor does he appear to address the origins of messianic expectation beginning in Genesis 3:15.
A theological conversation that is not grounded in historical-cultural realities is too speculative for my taste. This is my argument with Harvard Professor Shaye Cohen. I prefer the thought of Rabbi Kadura and Rabbi Simon Altaf.