It is a particularly schlocky way to present this information, in my opinion, but otherwise Monteiro's deconstruction of the stereotype is valid.
That said, I've rarely come across the kind of working experienced designer that would persistently violate more than a few of these rules, because they really are contrary to the tenets of professional design (as suggested) and wouldn't make for a very sustainable career.
It is a particularly schlocky way to present this information, in my opinion, but otherwise Monteiro's deconstruction of the stereotype is valid.
That said, I've rarely come across the kind of working experienced designer that would persistently violate more than a few of these rules, because they really are contrary to the tenets of professional design (as suggested) and wouldn't make for a very sustainable career.