Great to see a more up to date approach to themes on WordPress :). My colleagues and I have been working on a WordPress boilerplate theme, and the 3.0 release will be great, you can check it out here.

Besides using the OOP approach, we're using modern JS with Webpack and SASS (with BEM principles). I think these kind of things are what move the WP community forward - show a way these can be used (with ease) and more and more developers will use it, thus bringing the code quality up imo :)

Awesome work Justin :)