[nikitaga]

This principle as presented is not universal, it's built on a set of assumptions that are true for Scala but not for other environments.

For example, it assumes that refactoring is easy, making it easy to switch your initially simple solution to something more complex if / when the need arises. That is true in Scala thanks to a rich and safe type system, but in other languages it may not be as easy, and it's certainly not easy to replace a python app with a Scala app.