[mindwok]

For me, it is a feature.

Coming from languages with exceptions, where you have no idea if a function call is going to explode without praying that the library has its exceptions documented or reading the source code, having error values that you cannot (easily) ignore is a blessing. It's not as good as something like Rust's Result sum type, but it's pretty close. It makes you explicitly handle, or bubble up, every error in your program which in my experience is a huge cause of unexpected exits in other languages.