I actually like long verbose names. Unfortunately, plain JS names are often long, verbose and unclear, so that's not a win. (e.g. document.querySelectorAll - that should have made some reference to css; and "all" should be implicit as it is the norm in CSS).

I'd love to see a JS library that doesn't try to add a lot of functionality, but only decruftify the browser API.

The right aim would be to end up with a complete API that might actually replace the normal JS api (DOM+otherwise) in actual browsers.