A list of believing scientists can be matched by a list of unbelieving ones: Laplace, Darwin in later life, most twentieth-century physicists. Lists prove nothing.

True, and the claim is not that scientists tend to be believers. It is the historical claim that the founding generation was largely devout and saw no conflict, which answers the specific popular assertion that science advanced by throwing off religion. The modern demographics of scientists are a separate question and nothing here implies otherwise.