With it's more than 50 mln population, 100 000 is less than a 0,002%.
And i'm sure that all this 100k people lives in a major cities. So nobody would take them into a serious concideration.
It might not seem like much, but it might actually have a slight impact in the end. Every tiny bit of positivity in favor of the exchanges will increase the chances of a good outcome, regardless of how small the increase is.
It's at least an effort to force through a change, which is better than people as sheeps accepting their government to act like a complete idiot by prohibiting something that can push their own economy forwards.
If South Korea ends up actually forcing through their ridiculous plans, we can prepare for a sharp decline in price that may even push the market below the $10,000 mark again. It is what it is, we can't do anything about it.