Sorry, but the example wasn't wrong at all: it is simply how it works, because NDB doesn't have radials and it simply shows always the sation bearing, regardless of the magnetic bearing of the gyro.
You are right Joe the example wasn't wrong!
I think most people who didn't get it maybe haven't used an RBI before and probably only used an RMI???
The difference being an RBI will always show you heading north i.e. north at the top whichever direction you are actually flying (unless you turn it to match the heading which wasn't an option on the test)
Whereas an RMI will rotate to show the aircrafts actual heading and thus make it a'lot easier to workout your bearing to/from an NDB