I've never heard of that interpretation. Get the star file here:
http://www.hardlink.com/~markdu/OWFi...eExplorer.html from which:
Code:
107N . * 2 PERMITTED IN EUROPE TO/FROM/VIA
108N . GHANA/NIGERIA/KENYA. 1 MUST BE A TRANSIT
109N . WITHOUT
110N . STOPOVER BETWEEN GHANA/NIGERIA/KENYA AND
111N . ANOTHER
112N . CONTINENT.
I can just about see that you could interpret that to mean that if you use the exception then both of the entries to Europe must be "to/from/via" one of the three countries, but it's not the usual interpretation. Why not see if you can get CX to issue it? Or simply ask AA RTW desk for their view?
On the N America segments, you are correct about the stopovers - the suggestion was merely that you could return to, for example, LAX by doing HKG-(x)JFK-(x)SJU-(x)JFK-(x)DFW-LAX in stead of just HKG-LAX. This only makes sense if miles are important to you.