Someone filed a bug with incorrect category back in November. I’ve cloned it to a proper category right here: https://bugs.centos.org/view.php?id=16914 Please try to reach out to the maintainers in that ticket.
AFAIK there’s no reason to use to use RH subscription on non-RHEL, but I don’t know your use case, so perhaps it a question better suited for CentOS forums.