Confused on the Messaging

I saw in the blog put out by the devs yesterday ( which I appreciate alot btw) that they want to catch us up to the KR version of the game. Honest question here, why cant they just give us that version ? Is it a money thing ? Why does this version of the game have to be different ? Im genuinely asking it seems confusing to me. If the game is already developed and those patches are published in KR, why not just put them all out here. Is it a translation issue or something ?

I dont mean to sound dour our anything. Im enjoying the game and I appreciate the direction yall are taking it.