Weird, I was under the impression that South Korea was a free market type place. And why would they only allow ActiveX to used? What would happen if a sited decided to use something else to offer the same functionality? Would they get fined?
I wouldn't necessarily call South Korea "free market", since there seems to be a lot of protectionism. Everyone who has been to Korea has probably noticed that almost everyone drives Korean cars and uses Korean phones. Taking that into consideration it seems quite odd that the government has tied the infrastructure to one vendor(which is not Korean).