That’s a fair point, and worthy of deliberation.
However, I would continue to argue that if Redhat does not restrict parties’ rights to the source code they’ve been given, then they’ve satisfied the GPL.
It is my understanding (at least initially) that the GPL was meant to solidify the end user’s rights to the software they have, so that they’re not left with an unfixable binary executable.
And again, there are no rights granted by the GPL for FUTURE versions.
We can agree to disagree. “The Software” was delivered, source included. And you as end consumer are free to redistribute and maintain as you wish.
However, I cannot see any contract law judgement that would force continuation of a subscription model on the vendor (in perpetuity!) if they do not wish to remain under contract.