Hello Jo,
Honestly I think its been well over a year since anyone has worked on this, but I will do my best to answer your question.
If I recall Architecture Rules only looks what what a class imports to determine what it depends on. So the tool only looks at direct dependencies, not the indirect dependencies (transitive dependencies).
These are current limitations of the project. We had recognized that we needed to replace JDepend but never got around to doing it.
Does that answer your question? Mykola might have additional insight to offer.
~ Mike Nereson