I'm not really sure how to phrase this constructively, but this is horrible. Not the article, just the fact that humans expose themselves to this sort of stuff. Why would you choose to use a language that makes something as mundane as error handling this ridiculous and unpleasant?
There is nothing mundane about error handling, in fact it's one of the hardest things to get right in a programming language (see Rust's error handling saga for instance).
There is no language I know of where error handling is both simple and not overbearing.
The most annoying thing about all this is that the central argument of this article "Separate recoverable errors from bugs" never made it to a widely used imperative language. C# had the opportunity but blew it.
Java mixed the two kinds of exceptions up completely and checked exceptions just added insult to that injury.
The best implementation I have seen for an imperative language is in Midori (The language used in Microsofts research OS with the same name).
