[CentOS] XFS on CentOS

Hi all,

Does anybody know why unlike so many Linux distros (Fedora, Ubuntu,
OpenSUSE) CentOS does not come with XFS support by default but rather
requires custom modifications after the install in order for you to be
able to support XFS on your CentOS machine? Just seems a little odd
given how much CentOS is oriented to be used as a server OS.

Thanks.

Boris.