Is JS involved in it? Because if it does, it won't help at all :)

haha, for sure it is more about the explosion of frameworks and libs that will be proposed to you if you want to start full-stack projects. https://hackernoon.com/how-it-feels-to-learn-javascript-in-2... is a good article to explain this.

That article proposes to select and highlight a particular subset of these helpers, notably React and Redux.

But all of these are made in JS... So it is about to empower this language through good sugar syntaxes, and with dom manipulation/app state transactions friendly apis.