More than 2.7 million pieces of software, all created with a visual programming tool, and mostly by little kids.
Yes, most of them are simple (though there are some impressively complex projects on there). So what?
Scratch is awesome and as I mention in the article, one of the strengths of visual programming is that it requires much less training before you are able to actually "do" stuff. However, just because you can* do something doesn't mean it's the most optimal or the easiest way to do it.
1) Pick one of these at random. 2) Assign a person who knows nothing about programming to write it in C. 3) See how long it takes.
Why not python or javascript?
So you just repeated the complain of the author (that it only works for simple stuff), and yet you act like you challenged it.
I would bet that in terms of sheer number of procedures, the majority of software written today consists of spreadsheet and word processor macros.