[nix0n]

That's true, but it's also possible to prevent these problems within a language, as Java does: https://docs.oracle.com/javase/tutorial/essential/exceptions...

(Not trying to start Java v Ruby here, just looking at how exceptions work)

[FanaHOVA]

It definitely is, but what happens when you'd like to use the other behavior? There's definitely certain occasions in which you want to use the not-best way to do thing. Leaving the choice to the programmer rather than removing the feature from the language is the way to go imo.