Are we now making assumptions that there aren't any 'below par' contract foreign pilots on the market?
Don't for a minute think that all the new joining Captains coming to Korean Air (or any airline for that matter) are of high standard. In recent times there have been quite a significant number of foreign pilots chasing the $$$'s and schedule structure of KAL who have just not made the cut for a number of reasons.
Surely any airline has the right to uphold a certain standard for both locals and foreign contractors?