I skeptical of benefits of declarative routing. My project got much simpler after I got rid of react-router.
It's easy when you use webpack and a static renderer: https://github.com/markdalgleish/static-site-generator-webpa...
This was in response to
> Why not just use a templating language?
React is a templating language...or maybe more specifically has a templating language, JSX. You can even run it server side. http://reactjs.net/guides/server-side-rendering.html
The problem isn't using React in that situation per se but just that server side templating (React or not) would be a better choice. I assume that's what the commenter meant.