On 28 July 2007, Akemi Yagi wrote:

A nice catch. As you know, typos are a hallmark for some CentOS developers and an integral part of the CentOS project because they make this OS stand out. :-)

I laughed, when I read that! I believe they want to make it as perfect as they possibly can. Actually, I wondered about reporting that typo, because it seems like serious nit picking.