> Serving HTML from the server is great for search engines.

Google and the other search engines should go with the times and start to render and index single page js applications just like they index html pages. Executing js on the server and get the resulting output is a solved problem. JS is enabled by default on all browsers that matter (and very difficult to disable), I don't understand why we still have to play nice with search engines and render the html on the server as well just for them.