Java/OSGi folks: Does anyone know why so few of the Eclipse/Equinox jars are available on Maven Central?

Java/OSGi folks: Does anyone know why so few of the Eclipse/Equinox jars are available on Maven Central? I realize that Eclipse likes its own p2 system and the Eclipse marketplace, but couldn’t the core artifacts also be deployed to Central? It’s enough to make me want to switch to the Felix kernel instead… I have a dependency that wants a newer org.osgi.framework package, but the newest Equinox available in Central is v3.6.0