Management is interesting because you can be a terrible manager yet still have a successful career at it.

A lot of competent management practices seem counter-intuitive if you've never been exposed to them. Most managers I know have have never even read a book on the subject. Management is often the blind leading the blind. Most likely this kind of environment will scare away any good managers, so the cycle continues.

So, unfortunately, it shouldn't be surprising that these counter-productive practices continue.

That said, reports like this never cease to amaze me.