Getting hold of it is, of course, rather more hard work than it would be for most distros, since Red Hat charge a pretty penny for the real thing! However, signing up as a Red Hat developer can be done entirely free of charge… and getting your mitts on it after that is a piece of cake (and costs precisely nothing at all 🙂 )
On to the obvious question: does Atlas work to make Oracle 12cR1 and 12cR2 installations on this new Red Hat version as simple as it did for earlier ones? Absolutely:
The article describing how to do it still holds true without any alteration or update being necessary, too.