Why no GRUB2 in Red Hat 6 and derivatives?

Just curious on this, why does Red Hat 6 and derivative distros not use GRUB2, when Debian (I used it in Ubuntu) moved to GRUB2 approx. 3 years ago?

While we are on the subject what are the pros and cons of the two? I understand that GRUB 0.97 is no longer maintained, but is stable. I read during my brief research that GRUB2 is not stable but the poster did not elaborate. Personally speaking I've never had a stability issue with GRUB2, but it did not particularly enjoy making changes to it when compared to GRUB 0.97.

Can anyone shed any light on this matter?

Thanks

P.S. If this has been done to death and I am slow poke please downvote to oblivion.