I would say that is all the more reason for writing HTML and CSS with a sprinkling of JS - you need less JS for the same result, you need CSS frameworks less.

I would say that is all the more reason for writing HTML and CSS with a sprinkling of JS - you need less JS for the same result, you need CSS frameworks less. I am not so sure about PHP, but I think the intent is more "do it in the backend where possible" which i agree with.