[technion]

That blog reads as contradictory.

It talks about building a SPA, and rendering on the client side using JavaScript. It also talks about being AMP compliant.

Those goals cannot coexist.

[systoll]

I believe they mean something like https://github.com/choumx/amp-pwa.

AMP pages, which link to (and preload) a react-based SPA, which gets its content from AMP pages.