In reply to Tiberius: I'm not sure all the overtaking places were on the uphills. Several of the technical descents had multiple lines through them, and early on I'm sure I saw overtaking on them (I was there for the women's event, but missed the men's event).
Later on when the field strung out most seemed to take the same line, probably as it was the quickest, but there weren't a lack of overtaking places going up or down hill.
It doesn't have the bunch racing of the track (though they killed those sort of events for the most part this time around) or the road, but that's part of the discipline. Maybe what you want is for CycloCross to become an Olympic event!