[zerker2000]

  it solves a lot of the problems that CoffeeScript is trying to solve without drastic syntax changes.

I cannot speak to authorial intent, but for me the majority of the problems CoffeeScript(and moreso LiveScript) solves are syntax ones.

[acjohnson55]

ES6 solves many of those same problems that required overly verbose or awkward ES5 syntax. Things like basic this-preserving closures, collection extraction, and so forth. Same problems, similar but less radical solution in ES6 vs. CS

[orf]

Same, if I squint a little I'm just writing Python that runs in the browser.