Oracle's OEL is the reason all of this happened in the first place, lol. I don't think there are any good guys or bad guys in all this, just corporations doing what corporations do: make money. Oracle and SUSE smell blood in the water and are trying to capitalize as much as they can. I don't blame them.
Oracle repackaging another distribution for no other reason than that they want to is the core concept of the license of the Linux kernel. They didn't do anything wrong. That's how it's intended to work.
RedHat doesn't get to just claim the benefits of that license then shit a brick when someone else does the same. They're perfectly free to write their own OS without GPL code if they don't want to be held to the GPL.
So far as I know, Red Hat did not violate GPL. Oracle didn't do anything wrong and neither did Red Hat. As I said, there's no "good guys bad guys" here just companies trying to make more money.