You seem to be mistaken about what SPAs are. Github is simply a traditional Rails app that uses Javascript to enhance client side interaction. A ton of web app

You seem to be mistaken about what SPAs are. Github is simply a traditional Rails app that uses Javascript to enhance client side interaction. A ton of web apps provide data visualization features without being SPAs by simply using libraries like D3. I don't know what kind of apps you're building but claiming that everyone needs to start using SPAs instead of traditional progressive enhancement with Javascript is not right.