OZ has used a consulting company for this new mileage program changes. I think the changes reflect OZ's response (or following KE's path) to KE's mileage changes. While some other changes bring some benefit for elite membership, it's not all that great. But then again, FFs in Korean market is limited with choices when choosing non-stop destinations from ICN that OZ and KE doesn't have to work as hard as US carriers to attract FFs to their airline.