Really? None of them seemed to have any kind of numinous feelings to me. It doesn't make them less human, but even if they can appreciate beauty and mystery, none of them made me think, "This person has wondered about God seriously." I mean, ask a theologian about God, or a priest, and it's a passion. Most of these people have thought about religion or the evidence for God. But none of them answered the actual question. Not "Do you think there's a guy in the sky who tells us where we go when we die and is nice?" but "Is there a first mover unmoved, and if not, then what?" If you have actually spent time thinking about God, this is not a yes or no question. This is a question about the ethos of your life. Do you live as though the universe has a center, and is it you?
The question was "Do you believe in God?", not "Give a thoughtful and will informed opinion on the nature of God and belief." If they sounded like they haven't given the subject that much passionate thought or made the subject a major focus of their lives, it's because they haven't. They're aware of it and they have each had varying degrees of involvement but their passions lie elsewhere. Why would they devote the kind of time and energy required to form the kind of philosophy you're speaking of on the subject of a God they don't believe in?