> exists more-or-less equally on other frameworks.

You are probably just comparing apples-to-apples here, then. Certainly: replacing Rails with Django or Symfony won't solve the core issues one has with Rails, because Djange and Symfony follow the exact same pattern and architecture.

But architectures (please note that I deliberately don't use the term framework here) like CQRS, Event-sourcing, Event-buses, Actors, Reactive etc. all fit much better for many use-cases than MVC.

All architectures have downsides and upsides. The one's I mention above with which I have experience have severe downsides in other areas. Some of those downsides are solved in Rails, some in other architectures. It's always about weighting trade-offs and choosing what fits best for your use-case.

So please don't just label everyone who made such tradeoffs and chose to forego rails because it doesn't fit them as "chasing fads".

If anything, blindly choosing Rails is just as bad as "following fashion": both is making decisions without any basis.