It's a tool with an unexpected side effect that it can hurt or kill production. And this post (and others like it) encourages people to use it without a single mention of "overhead" or dangers.

One may not need to belabor the dangers of tools like shutdown, ifconfig, fdisk, etc, since as administration tools one should _expect_ dangers. The worst tools are where the dangers are unexpected. People are going to learn it the hard way if you don't provide a warning.