That's ancient history by now and the Deltoids are not in a position to tell anybody else how to run an airline, they went bankrupt and gave up their pensions and pay in 2005. Copilots on cargo airlines make more than Delta captains these days.
Maybe they will contract KE as consultants on how to make a profit in the flying business.
There is some bogus Delta 'report' done by a sacked KE Kiwi on the 'net that floats around with typical wacko expat stuff about how to fasten shoulder harnesses and when to lower the armrests and other wisdom. It is not all bad but certainly wasn't written by a Delta pilot.
See: korean airlines internal audit safety report
Korean used to be the FedEx of Asia with their frequent hull losses, it does seem that they have cleaned up their act.
Airbubba:
The audit I saw is not the one posted by the Kiwi. I don't know where that came from. The one I saw was the original one done by the Delta team.