But, your analogy is flawed; the situations are incomparable.

You're not forced to use Rails for your server application, many other software exists as well as Rails: Django, PHP, etc. However you /are/ forced to use Javascript, CSS and the DOM; Unless you're a Big Browser Vendor and can try and coerce support (and even so, the amount of websites made in something like Dash is pitiful afaik). People made frameworks and libraries that make it bearable (SCSS, JQuery, etc), but that doesn't mean everything is solved...

That's a totally different analogy altogether. The argument expressed on that page isn't that there is a lack of choices, but that the choices are inherently flawed (and somehow "fixed" by frameworks that lie on top).