Was Hitchens' incredulity acerbic and coarse? Irreverent and obscene? Depends on your tastes and sensitivities. More importantly, these qualities were imbedded in charm and wit that set up the discussion of religion in a way that awoke our reflective capacities.
There really is such a thing as spirit, but it is not as people have imagined it in the past. Spirit is information of a special kind. It is quirky and individual to each of us, and is precious because it is not eternal.
One can argue for all of modern science and yet agree that there are certain questions that science leaves unanswered. Although one need not turn to religion, it is legitimate for the believer to offer answers.