I don't get what you're saying. Rick was commenting on the five fundamentals being a narrow definition of Christianity. It's as wide open as you can get.
Why is that so hard to understand? Yeah sure there are narrower Christians, legalists, that call themselves fundamentalists, but that is not what he said.
Look at the purpose of the interview, the people asking the questions, the questions and the entire interview. You are taking a very small portion out of context. He explains what he means by Fundamentalism and why he and Jerry Falwell no longer are a part of the movement, not that they don't agree with the five Fundamentals.
http://pewforum.org/events/index.php?EventID=80