This article seems to start with the premise that JS-heavy frontends improve the developer experience. This, I would heavily challenge.
Compared to a Rails, Django, Express.js, or any similar more-traditional framework that does server-side rendering with HTML templates, a little bit of JS and AJAX sprinkled in, SPA apps with frameworks like React are significantly more complex and requires more specialized knowledge on the frontend. I'm just starting to dive into React and Redux, and the amount of jargon and complexity is mind-blowing. All to solve the complexities of what? Bigco's massive bloated app with thousands of developers working on it?