This is why they bought RedHat.
It's hard to keep up a trained workforce when they lock the doors so tight.
The value in something like Cent/RHEL is LTS stability. Really, the only valuable part of Cent/RHEL is the stable kernel because the userland rapidly becomes old and useless. Something like Ubuntu with a RHEL quality kernel with a 10 yr support lifecycle but without a separate foss/commercial version would be superior to either RHEL or Ubuntu. Canonical went full shark-jumping mickeymouse with their "Pro" subscription and non patching model unless you pay $.