Code Smells: Couplers vs. Change Preventers

Whenever you have high coupling, you also need to make lots of changes in other parts of the code, right? If so, aren't Couplers and Change Preventers quite similar Code Smells, and what makes them clearly different? So like why is a Change Preventers Code Smell not by definition also a Couplers Code Smell?

(Might be something to add to those sections as well..)

Kind regards, Philippe