[lukaslalinsky]

I think this is because of the reasons mentioned in the article. From my experience, most software gets written by people who are not completely new to programming, but are not what I'd call senior either. Let's say it's their second or third bigger project. They are still very enthusiastic, they are able to write a ton of code, they are exploring new design patterns every day, etc. They also do not cost much more than complete beginners to hire. So they end up writing most software and that's why you see a lot of over engineered solutions.