I support innovation and people who like to code and build great things. And am happy to see JS is getting these features. I even see a downvoted comment to "just use amdefine". Well that solution worked fine for me, then 5 years of amazing hop scotch between build tools and libraries happened. And while some report benefits and advancement, I have to tell you, the amount of tools you have to pull in these days just…
I think that core js evolution has slowed down. There is not that many new things in ES2017 compared to ES2016.
Some libraries still evolve a lot but that will probably slow down over time. Some tools evolve but that is slower than the libraries. It was a few years between webpack 1 and 2, for example.