They should have known better, but I still feel very sorry for both of these pilots.
A couple of years of pilot training, a heap of sim and CRM courses are insufficient to counteract thousands of years of culture. Asiana Airlines management in the past has failed to initiate counter culture cockpit management, which makes it the problem.
There have been isolated outcomes where cultural considerations have been put aside. However there are many more cases where management has been spoon fed safety solutions and for no valid reason, failed to act.
Last I heard, a retired Japanese pilot was engaged to manage safety matters. That must have been a major call and I hope he succeeds.