Whoever has won (probably Sanders based on probabilities going in and reading the tea leaves available so far?) is really screwed over by this. The Iowa bounce is a statistically significant phenomenon. If that is taken away from the winner, they are deprived of a huge advantage. Luckily for Sanders, the New Hampshire bounce will probably now have the same effect. But if Buttigieg was actually "victorious" in Iowa, he's pretty much just lost whatever hope he had of turning it into a path to the nomination, by virtue of the organisational stuff up.