I'm not saying you are wrong, but most of the literature indicates that high cohesion is correlated with loose coupling. The entire industry treats them as an axis so I don't think it is disingenuous for the author to do so.
I was a bit unclear: my general point is just that you can decouple code in ways that doesn't necessarily increase cohesion and you can decrease cohesion in ways that doesn't necessarily increase coupling. If you are designing a system with some rational interfaces and layers of abstraction, then most of the time you will find these two variables have a very direct relationship.
