Oracle Linux support costs money. If you just want the software, it's 100% free. And it's all in our yum repo at yum.oracle.com. Major releases, errata, the whole shebang. Free source code, free binaries, free updates, freely redistributable, free for production use. Yes, we know that this is Oracle, but it's actually free. Seriously.
This makes Oracle Linux not really a clone of RHEL, because there is quite an obvious issue of being unable to install some -selinux packages that were built in RHEL itself, or other clones. These extra bits 0.1 in the release field were enough to break the compatibility.
Would it be able to fix support for Oracle Linux 8?
Possible solutions: could be by allowing the oracle-epel-release-el8 as an alternative to the epel-release package, or by trusting the user to install epel-release and just having the dependencies on the packages it provides instead of the repository itself?