It could be better integrated into the RHEL experience. EPEL runs up against some of the same problem that any 3rd party repository split does when it comes to policy synchronization. Debian certainly has some advantage in the fact that they don't have a split between "supported" and "unsupported" repositories.
Are paying RHEL customers sufficiently interested in EPEL as a resource to start talking to Red Hat about working to better integrate EPEL into the RHEL experience? I'm not a paying customer, but as an EPEL maintainer I'd love to know what the RHEL customers are looking for as a starting point for for a roadmap for better integration.