Yeah I think it was a happy accident either due to a marketing stunt by Daisuke or due to licensing issues where there had to be some sort of native language content in Korean releases of media back then. But I can't remember now.
This is the greatest videogame ost of all time and you can't convince me otherwise. RIP Shin Hae-chul. You went incredibly hard for a region exclusive OST of a niche game you absolute madman.