well I don't quite agree....The Korean fans made lots of noise and so did the Iranians....the stadium was just about 1/2 full and the atmosphere was still good.
Iraq v Australia was a thriller and the atmosphere was tense and loud...stadium 3/4 full
The Uzbek fans are a really small crowd but they are very vocal - drums etc - they seem like great people.
Anyway we need the players' opinion really :)