> since it enables a lot of cool tooling

What leads you to believe that the lack of alternatives leads to enabling "a lot of cool tooling"?

> and great new features are introduced quickly in the official implementation.

That has zero to do with existing only a single implementation, and everything to do with having developers working on unstable releases and a poor job thinking things though by writing stuff down both as proposals and specifications.

If there is a specification that was discussed and thought-through by competent individuals, nothing stops anyone in the world from reading the specs and implementing the same features.