I think it's more than that. The Koreans weren't really countering on a matchup level but rather an application level. Like they would "know" when whoever wanted to do whatever and preemptively start positioning for it. This is why allot of those fights that should have been 3v1 ultimately ended up being something like 3v4 instead; they were playing the players, not the match-ups. One thing the Koreans initially failed on though was dealing with Singed, for whatever reason they simply weren't ready for that, but you can definitely see how they made that player-level adjustment in the do-over match. Alternatively I suppose you could make the argument that TSM kinda folded in that final match... and honestly I'm not sure you'd be wrong.