At first I thought this was a satire of modern work. Now I'm convinced it is at least as much a satire of GUI toolkit widget developments or, more generally, corporate User Interface design.
The game emphasises just how close to being terrible most UI widgets are, and illustrates beautifully that the difference that makes them terrible is usually the only thing that differentiates them from validated text input components. My favourite two are the calendar and the spinner.
The calendar only goes back month by month. Some calendar components I have had to use actually do this, especially those on the web. There is no way to choose a year and there is no text entry of dates. A validated text entry field would be superior if your use of them consisted of anything but picking dates in the current month.
The genius of the spinners in this game is that you can't just use them as text entry fields. You can only use the tiny little buttons, so if you have to enter -13, then you have to click 13 times. Text entry would be superior if you had to pick a value far from zero.
The only widget that does what it's supposed to is the text entry field. But even that feels alien initially because the wrong letters come up. It is only when you see words appear when you hit backspace that you realise that you're just meant to mash keys.