Whether the GPL says the redistributed code has to be a bug-for-bug compatible copy of RHEL is up for lawyers to decide. In my mind, saying “I am not running Software Foobar, I am running Software Foobar released a few months ago” seems like a silly distinction in this case, especially when talking about the health of FOSS.
I am actually wondering whether they’ll start considering a Flatpak version of Resolve. Seems like Blackmagic is reluctant to support anything other than RHEL and CentOS, and RedHat seems to be moving towards Flatpak anyways, given their recent move to stop shipping LibreOffice.