The context I think they are proposing blockchain to be useful is in verifiable public information. For information to be verified or analyzed the blockchain can verify the source even offline.
It's still extremely useful as currency as well, though, precisely because it actually is digital currency, and allows direct person-to-person transactions via the internet without requiring a proprietary middleman. The previous commenter's complaint about how it doesn't solve anything if you get scammed is a bit off-target, because dealing with frauds and scams isn't a feature inherent in the currency itself -- it applies equally to any payment solution, especially cash and checks -- and is something we deal with via the legal system regardless of how funds are transferred.