Have you noticed that South Korea now uses first names on their World Cup jerseys instead of surnames? South Korean captain Park Ji Sung's jersey now reads "Jisung" instead of "J.S. Park." Did the team think it was too confusing with so many Kims, Parks, and Lees running about? What's challenging is trying to sound out "Seungyeoul" as player is sprinting down the field.
One thing I have to hand to North Korea is that their romanization system is truer to the way Korean names are actually pronounced.