Timing, yes, but the Korean paper seems to be a lot more verifiable/falsifiable. No obfuscations and the method that they describe only needs some fairly basic

Timing, yes, but the Korean paper seems to be a lot more verifiable/falsifiable. No obfuscations and the method that they describe only needs some fairly basic reagents and equipment for replication, plus a few days' worth of time. If they are wrong, we should know pretty soon.