All of the top level comments are complaining... How many of those people have written at least 10k+ lines of JavaScript? These changes are hard, but they are

All of the top level comments are complaining... How many of those people have written at least 10k+ lines of JavaScript? These changes are hard, but they are undeniably improving the language. And as many others have stated repeatedly, it is not necessary to chase the bleeding edge. For example, I just learned React for the first time a few weeks ago, and I'm glad I waited (I haven't started using Redux yet either). I'm also still using browserify instead of webpack. And so on.