My point was that there aren't enough teams in Korea to warrant moving there. DRX is definitely worth scrimming, and the other top teams in Korea are too. However, with such a small number of highly skilled teams the scrims may not be as efficient, especially because the only other option is JP teams (which allegedly tend not to scrim SEA teams).
On the other hand, from SEA, it's possible to scrim against Korean teams on like, ~50 ping, which is entirely playable. And, from SEA, it's possible to play against dozens of other great SEA teams with a much larger variety of playstyles on lower ping.
I wanted to point out that moving to KR may actually have a negative impact in the long-run, compared to another nearby region.