If you read it again, you'll discover it's not a comparison.
But you are saying that "es6" is the way to follow. Why?. Was the migration es6 painless?. of course not, it is painful and most developers aren't even using it (4 years and counting), they are using CoffeeScript, Babel or ActionScript, so es6 is a promise, not a reality.
I agree with Chad here.
I think PHP would benefit from a start from zero but that's never gonna happen. Too much will break if they do. So I started to think about alternatives.
And to reply your original question Jorge:
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.