The trouble is, reducing the size of the outbreak doesn't affect the number of tests needed to do this much at all, and the number of people South Korea has been testing doesn't seem to have increased in quite a while. In fact, it seems to have actually decreased compared to back in March. Like, as far as I can tell, they're still using the same contact tracing and testing strategy that failed to contain it before without additional strong social distancing, and the social distancing is weakening.
