So is Boeing now going to challenge the Koreans' decision on the grounds that it was an unfair competition?
For the record, Boeing never called the KC-46/KC-30 contest "unfair". They DID contend that the USAF tanker selection authorities did not adhere to the written terms of the RFP both Boeing and Northrup/Grumman replied to. And the GAO agreed. When USAF was legally enjoined to adhere to the terms of the RFP, N/G pulled out and Airbus stuck it out alone.