Sadly, I think there is some truth to that. I think when a Christian takes the "God said it, I believe it, that settles it" stance it's simply laziness. Too many are like that. No offense, but I think Angel_Luv typifies that. She is either not interested enough, or hasn't had enough time to develop sufficient logical arguments to support her faith. She simply believes what the Bible says, and isn't ready to explore outside of that.
Christians can be lazy. A lot of them just want to go to heaven, and aren't interested in truth. So, they don't allow their faith to be challenged and pretend that engaging in such a challenge shows a lack of faith, when really all it shows is an unwillingness to learn more truth, and sometimes just outright laziness.