Also, RHEL is packaging pieces of software that are not under GPL/LGPL. With permissive licenses, they could probably heavily restrict source redistribution and

Also, RHEL is packaging pieces of software that are not under GPL/LGPL. With permissive licenses, they could probably heavily restrict source redistribution and availability. If half the userland is not available as source (patch and packaging included), a CentOS-like project would not be possible. Effectively, if RedHat/IBM wanted, there are a lot of dick moves which could effectively kill Rocky.