Whilst I disagree with you on the merits of a possession based game, I'm with you about the Dutch. I remember Argentina hammering Bosnia in 2006 and everyone assuming they would win the tournament, only for them to limp past Mexico and go out to Germany in the quarters. Granted, the opposition weren't as good for them, but they still peaked way too soon, as have the Dutch I suspect.
That said, Spain were an utter shambles, Del Bosque looked a broken man at the final whistle so I wonder how they'll respond as they've never had to come back from such a battering.
I watched the Chile Australia game too and though neither team looked capable of a win against sterner opposition, they won't just roll over. Had Australia cottoned on to their advantage down the wings earlier and given Cahill better service, they may well have earned a draw.