Speaking of JavaScript's evolution - I've been building a music player (muz11.com) and it's remarkable how far we've come. The Web Audio API, MediaSession for lock screen controls, smooth animations via requestAnimationFrame... all running client-side with no framework, just vanilla JS. Thirty years ago this would have required a desktop app and probably a record label deal.
The irony is that 'freeing' JavaScript from Oracle's trademark might matter less than freeing ourselves from the framework churn. The platform itself is incredibly capable now.