Debian is a distro of few surprises and stable but slightly out of date packages. Their software repositories are vast and supported across pretty much every architecture you could think of running Linux on.
Meanwhile the world of RHEL has been turned upside down with Redhat essentially putting a paywall around their sources. Although Rocky currently promises to continue being bug for bug compatible with RHEL it remains to be seen if they can continue to do so (in my opinion)
I doubt they're missing them. They simply don't care and will continue to not care until something happens that makes the money generated by the ADs not worth it.