Tell me you didn't read the article without telling me you didn't read the article
Yeah, GUIs have been around for about forty years. But what the article said wasn't "GUIs suck!". What it said was that GUIs were at their best, essentially finished, twenty years ago, and most change since then has been frivolous and detrimental to usability.
In short, it said current GUIs suck compared to what they could have been and used to be. And in this, the article was obviously perfectly correct. So your rant had pretty much nothing to do with this article. Learn to read, numbskull.