I don't personally believe that, WTH, but if it was true, then what's your point?
Let's say it's true, for example. That means I would be praising the referees, during that time, for helping us beat annoying-ass teams that win all the time, that's for sure. Watching Korea beat Portugal, Italy and Spain was one the greatest moments of my life. It was so great that I can still remember the atmosphere during that time.
Yeah, luck wasn't on our side when we lost against the Germans, but if it wasn't for Korea's epic run, I wouldn't be much of a football fan myself today. More importantly, football wouldn't have made such an impact to the Asian continent. That's a fact, so surprisingly, the referee have played a key role in bringing top levelled football closer to Asia.
I started after the world cup in 2010 :-)