Having national teams get blown out on the WC stage in pool play and next round doesn't help much of anything.
The Greeks were shooting the lights out vs USA, then totally cold vs Spain.
Fewer teams, say 8, but with 3-game series would prevent such huge swings from one game to the next advancing/eliminating. Greece aren't as good as they were against USA, and they aren't as bad as they were vs Spain.
If only China and one other are best teams from Asia, fine, but we don't need to see also weak teams from KR, JP, NZ, AU in WC.
With 8 teams in the WC tourney, the winner would have to play 6 - 9 games max, not a whole bunch more than now.