I think that one of the problem of the modern web is that it's seen as an application framework, and we forgot the origin that is the browser as a document view

I think that one of the problem of the modern web is that it's seen as an application framework, and we forgot the origin that is the browser as a document viewer, basically. Most of the problems wouldn't be even present if we reason in terms of documents, and in terms of operations that you can do on these documents (GET, PUT, DELETE, POST). You find out that for most website you don't need JS! One could argue that JS is an optimization because you don't load up again the whole page each time you navigate to a different URL. That is false: if you cache the assets that doesn't change between pages such as stylesheets and images correctly, downloading just the HTML of the page is something trivial. Look at the number of requests that a webpage that uses JS does: is that more efficient?