It sounds cool but also like a remarkable level of scope creep for the JVM. I realize that Java ecosystem is far beyond simple these days. Nobody is spinning up a JVM implementation as a hobby project. But sad to see the deep entrenchment that is caused when an open standards platform is made so inconceivably complex that there is simply no opportunity to innovate on alternative implementations.

This is not an observation about this specific project, just about the organizational pressure to extend standards based systems beyond their core functionality, into territory where only few players can afford to roam.