PEK/PVG - AUH- DUB falls within the maximum permitted mileage.
The Asiana website is clear in terms of partner awards that the itinerary may not exceed the Maximum Permitted Mileage for the city-pairs. Actual MPM information is not controlled by OZ, rather is defined by IATA and is not published for free online, although it is pretty easy to obtain access through paid third-party sites.