This is incorrect. Sharing source, you receive from Red Hat as part of your Subscription, is not limited by our Subscription Agreements and there is no penalty for sharing it. See Section 1.4 here.
https://www.redhat.com/licenses/Appendix-1-Global-English-20...
Specifically,
This Agreement establishes the rights and obligations associated with Subscription Services and is not intended to limit your rights to software code under the terms of an open source license.