Do you expect apple to display a pop up every time you change the language saying "did you know you can disable unwanted keyboard layouts?"
Second, the keyboard isn't ridiculous. It's actually quite powerful. He took a screenshot of the Chinese – Simplified (Handwriting) keyboard, which allows users to draw characters in the blank area. I hear it's an incredibly popular input method in China. Of course, the iPhone offers 6 other Chinese input methods, ranging from traditional keyboards to the drawing methods.
It turns out that, with over a billion people and dozens of dialects, many different writing styles, and a long history of different electronic input methods, Chinese speakers really do need multiple different ways of inputing Chinese.
There are also different phonetic systems, like Zhuyin/bopomofo. Some of these are taught in the educational systems and used as computer input method.
Apple choosing to support only one of these would be far more drastic than forcing all Latin alphabet languages to use the same layout. There could also likely be political ramifications, as traditional and simplified are the subjects of significant debate. [ http://en.wikipedia.org/wiki/Debate_on_traditional_and_simpl... ]
For example, because I had a checkbox ticked that said something like "move imported MP3s into my iTunes library"[1], iTunes destroyed my music library organization when I moved from Gentoo to OS X. Since my music still played on random without issues, I didn't even notice until I no longer had a backup of the old names. This made me hate iTunes so much that I still refuse to use it, but ultimately it came down to the same problem I think this fellow has with his keyboard: he messed around to see what options did what and later didn't remember that it wasn't like that by default, so he doesn't even know he can turn it off.
[1] this was 2003; I don't remember the exact wording
I do, you do, but the vast majority of people do not. Apple products ship with sane defaults and I agree with the parent that it's not Apple's fault if someone fiddles a special keyboard on that was off when the box was opened.
Regular folks just run with the defaults, which work fine for them. And the few people who work hard to become real experts on the platform do fine because they know at a deep level why problems occur.
But in between there is a range of people who know enough about Mac technology to dig in and play around and do some technical troubleshootin, but are unable or unwilling to really really dig in and spend time on hard technical details. In my experience nobody has a harder time with Apple products than these "mid-range" folks.
I know what you're trying to say, but you're entering a very dangerous area here. There is no useful system, anywhere, that doesn't require some amount of understanding. Even intuition doesn't come out of nowhere. Our intuition is only based on what we've learned so far. That is why we click on things that look like buttons and that is why, when facing a steak, we intuitively "know" it's edible. In both cases the outcome may not be as expected, but that's a different story.
My point is, that a system which requires no prior knowledge whatsoever and no understanding is essentially useless, because it literally couldn't do anything, for it would just be a void. I'm getting philosophical here, I know. Even the simplest of systems require a user to grok its basics to become useful.
Touching the screen isn't going to get your fingers sawed off or anything. It's there to be touched, and destructive actions are insulated from touch. A little exploration goes more than a long way.