The "jobs" this technology replaces were computerized in the 1960s and 1970s. The application of the blockchain only speeds up settlement because there is a single ledger between multiple parties.
You could do exactly the same thing with a centralized ledger and it would be faster and cheaper. The point of a blockchain is security and irreversible transactions.
Yet it is a giant leap backwards for security and irreversible transactions are a deal-breaking bug in the real world of finance. Mistakes and frauds have to be unwound.
"Finders keepers losers weepers" is a playground rule.
This is one of the things that really interests me. It's a tool to boost honesty in traditionally exploitable aspects of business.
Hell, with something like that the public might be able to viably reduce financial regulation -- or rather preventative procedural bureaucracy -- because of the ability to trace business transactional practices.