In reply to Justin Tadlock.

Better to switch to Vue than force Underscore and Backbone down peoples throats. Sticking to that is equivlence of sticking with PHP4.

What we seem to be missing, regardless of the JS framework used, is WP folks who are teaching others how to build with JS.
There is nothing specific about JS for WP. I made a plugin that reproduces basic WP media library functionality with Vue and WP API in just few hours.