Giro transfers clear within minutes. This is the day-to-day mechanism that EU citizens use to pay their bills. This smacks of a US-centric analyst who does not understand the Euro market at even the most basic level.
The reality is the US is decades behind the state-of-the-art in banking and pretty much none of the issues that are relevant to US citizens are relevant anywhere else in the world. Sending money to someone else's bank account within minutes is pretty much a solved problem, for anyone who isn't living in a 70s-era cheque-based world like the US banking system.
Sending some bits between highly trusted parties within a formal banking system is not some unsolved problem that only Bitcoin can tackle.