Makes you wonder what all these 'advanced frameworks' have actually offered the internet..

(hard mode: don't mention advertising)

Automatic crash reporting with time travel debugging with capability for graphical snapshots of the frontend.

Bandwidth reductions involving incremental loading of images, or not having to reload the whole site after a click.

Most sites are better off with static pages + server-side rendering + vanilla js though.

Trick question, they haven't. (Perl was the pinnacle of webdev and I anybody telling you otherwise is lying, or a javascript programmer.)