This is the rebuilders' burden, and always has been. It should be their engineers doing that work, just as with other open-source project. If you want to rebuild TensorFlow or React, slap on your own branding, maybe sell support or consulting for it or enable others[1] to do so, do you think those teams will go out of their way to repackage stuff for your convenience? That's above and beyond common open-source practice. Expecting Red Hat to continue going above and beyond forever just seems awfully entitled.
[1] "Team members don't do X but sponsors do" deserves its own thread.