If they didn't call it "motor common (white)" but called it say "motor return", and use say blue wire, the "switched neutral apparent violation" issue might go away. Or just note in the instructions "This conforms to 380-2(b) Exceptions #1 & #2" so an electrician would know that there are no mistakes.
[This message has been edited by wa2ise (edited 03-02-2006).]