> You don't need this for a page to serve a socially useful purpose.

You don't need JS to "serve a socially useful purpose" most of the time, as well.

As I said, it seems we decided that everything needs to feel like an app.

95%(yes, I'm probably exaggerating) of the actual value of the today's websites could be plain documents with links to each other.

But try and suggest to anyone you're gonna have a company presence site(or anything for that matter) with no JS at all, and see where it gets you.