Not really the same. Red Hat isn't revoking your ability to use the software you've already received. There's no "kill switch" for RHEL nor does the contract remove your legal rights to use the software you have received.

However, you do lose the right to access Red Hat-provided services, including the software update repositories, should you break the contract.

My understanding of the React license is that it remove[d] your legal rights to use React in any form, immediately, if you sue Facebook for Patent infringement. That's significantly harsher.