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The salient fact about this campaign is that demography trumps everything: people have been voting in fixed patterns set by age, race, gender, income and educational level, and the winner in the different contests has been determined by the way these different groups are divided up within and between state boundaries. Anyone who knows how to read the census data (and that includes some of the smart, tech-savvy types around Obama) has had a good idea of how this was going to play from the outset. All the rest is noise.
Pretty much everything in the Democratic primary has happened according to expectations. Except for maybe the fact that Clinton is hanging on longer and making dumber arguments than people thought she would. But none of the actual primary results have been that surprising.