Like the parent poster said, people are on a bell curve. It sounds like you may only have been exposed to mediocre, passable, or plain bad PM's so far in your career.

So I'll remind you: the reason we pay PM's is because good PM's can, and do, exist. I've only worked with a few great PM's, but they outshone their competition with just as much brilliance as the 10x among us engineers outshine the 1x. It's ironic that you would reduce PM's to a single heterogeneous caricature in reply to an article that is essentially saying that it's harmful to do so.