Related to this, I also created https://issues.redhat.com/browse/WFCORE-5505 to merge the content of wildfly-core-feature-pack-common into wildfly-core-feature-pack-galleon-common. However, Brian objected that this task would move a bunch of files that will be affected by Jakarta EE9. This will make any backport more difficult than necessary.
So now (WildFly 25/26) is not the right time to do this and WildFly Core will continue to provide these 2 maven modules to be consumed by WildFly.