I think Bill focused on the most extreme, but that isn't the point. It's hardly reassuring to defend religions by using those who take it least at face value, least literally as true, who espouse the most watered down versions.
But, this statement is ridiculous: "My guess is that since their are intelligent Christians that can not only refute, but embarass Maher he does not want them on his show."
Hardly. Maher treats Christianity, Judaism and Islam as just what they are, adult fairy tales. I'm sure there is just about as much chance of someone coming on Maher's show and defending belief in the Tooth Fairy as there is of someone coming on and "refuting Maher and embarrasing him" by defending these religions.
Religions tend to embarrass themselves, with no need for help from outsiders and non-believers.
S4