I've just spotted and scanned your valuable contributions to the "recent experiences booking an ex-CPT DONE5" thread. If I understand your stance correctly, wrt to:
CPT-DOH-LHR-KEF-LHR-DOH-LAX-MIA-YYZ-JFK-DFW-SYD-BNE-MEL-DOH-CPT

3.2.1 does not apply because it touches South Africa (o.e. swapping CPT for NBO would lead to a valid routing: NBO-DOH-LHR-KEF-LHR-DOH-LAX-MIA-YYZ-JFK-DFW-SYD-BNE-MEL-DOH-NBO)

3.2.3 does not apply as you note because it excludes flights between the Europe Zone and the Middle East Zone (if touching the Middle East twice).

The crunch item:
3.2.2 AFRICA-MIDDLE EAST-RTW-MIDDLE EAST-AFRICA
You are saying it is valid because "RTW" can include Europe, whereas I read it as only including other novel continents (i.e. excluding touching the rest of Europe). The rules are IMHO ambiguous. I wonder what the intent was and I also am not surprised ticketing is at best tricky.