It's not new and exciting anymore. Same reason you don't hear about Haskell or nearly as much about Rust despite them both being conceptually exciting projects

It's not new and exciting anymore. Same reason you don't hear about Haskell or nearly as much about Rust despite them both being conceptually exciting projects. Hype can be trending, while the underlying thing being hyped, is stable/mature. The aforementioned Haskell is an excellent example of this.