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.
"Finders keepers losers weepers" is a playground rule.