Right and if you read it, they argue the same as I do. The only way to guess such a passphrase is if it's already in their database because a lot of people use it. That it was is, I think, surprising. There are a lot of sentences and quotes from books in the world, either the opening phrase from 1984 is very widely used (seems unlikely given how uneducated people are) or there's something more to this.
I'd like if EvilDoctor could comment on this, given that he cracked the passphrase in a day, it would be great. I'm interested in how crackers are building their passphrase dictionaries nowadays.