I think it's actually agreeing with a lot of points from #11 and #16. Obviously this is an article about why you shouldn't be a manager, so it doesn't have any reasons why you should be a manager or why management is important. They alude to the fact that someone has to do performance reviews, fire people, and resolve conflicts.

The less edgy and more academic version of this is https://en.m.wikipedia.org/wiki/Theory_X_and_Theory_Y.