It uses a completely different paradigm of process chaining and management than POSIX and the underlying Unix architecture.
That’s not to say it’s bad, just a different design. It’s actually very similar to what Apple did with OS X.
On the plus side, it’s much easier to understand from a security model perspective, but it breaks some of the underlying assumptions about how scheduling and running processes works on Linux.
So: more elegant in itself, but an ugly wart on the overall systems architecture design.