WASM is going to kill spidering. We can't leave HTML if we want google to be able to read the page.

I think Google is very afraid of this. Hence their push for Angular/Polymer/AMP. If they can build a good enough platform in JS they can stall the inevitable.

In the future only marketing parts of the site will use JS/HTML. The "web app" part will be some language compiled to WASM throwing frames to the canvas

In a world where SEO consultants exist, you foresee an inevitable future where Google is killed by a massive wave of companies rewriting their websites to be un-Googleable?

The big players are increasingly doing it already. LinkedIn and Facebook only have very limited spidering.

What Google has liked to do recently is take all your data and replace your service. Search for recipes, jobs, music, or weather for examples.

They're trying to make leaving the homepage irrelevant by using sites data in their search results. Eventually the web will rebel.

But management won't pay to redevelop the whole site, so they'll just embed the content in a QtWebKit widget. We can still block ads at the network level.

Sure they will.

Instead of "why I moved from Angular/React/.... to Vue.js", it will be "why I ported into WASM".