Hmmmm...I wonder if your trouble ticket wasn't about the text that appears under a selected person's name in the People workspace. Yes, FTM is only designed to show the nearest relationship there. It does, however, show the nearest relation by marriage as well, which sometimes can override blood relations in the case of intermarriages in your family. (I have many examples of this in my FTM and Ancestry.com tree.)
The Relationships Calculator tool, which is under the Tools menu, is designed specifically to display all relationships detected. That's why it has a combo-box that allows you to select one of the relationships detected. Unfortunately, the detection routines doesn't iterate back through enough generations to detect all relationships. If the answer you received was about that, then it's bull$hite.