[rtpg]

"Majority of the web" is _not_ news sites and message boards and shopping sites. It's bank websites, ERP software, various CRMs (granted, like news sites...), time tracking, logistics sofware....

And, importantly, a lot of those websites have complex admin-side backends to deal with a lot of things as well! Of course in those cases you might say that the UX requirements are lower (true), but when you are basically serving as a DB frontend, you want to be able to do things quickly, even on a really bad connection.

There's a lot of cool work into partials for SSR, but React and friends are also very nice because you can build out complex UIs that operate through an API, without having to figure out a bunch of workarounds for stateless HTTP/HTML (form wizards anyone?)