I wouldn’t expect them or ANY airline to budge unless there is a flat out cancellation of service or a government ban (which this CDC warning is not). It sucks, but of course they’re gonna try to make their money.
I myself have a weekend trip to Japan booked for March 13-15 and it looks like I’m just gonna go because the ticket was 213,0000W and the cancel fee now would be 120,000W. And I mean sitting in Korea isn’t exactly any “safer.”