how can he not be happy? they might as well have been playing in Azteca with a crowd and climate like that...and no way Korea actually deserved to win that game...i mean, come on they had

homefield advantage
partial ref (though not as partial as some CONCACAF ones)
familiar to the climate
a penalty kick
an open netter
about 5 fast breaks

if you cant win with that you dont deserve to even get a point, much less win...all in all i say a hard, well earned point by the US