xml via ftp is used across many industries because these systems are decades old: there are many suitable replacements — the problem is not that there isn’t solutions, it’s that changing old systems is very hard. Bitcoin doesn’t solve that.
It doesn't necessarily need to. The other solutions are dependent on fixing the existing financial system, while the premise behind cryptocurrencies like Bitcoin is to outright replace the existing financial system. Bitcoin, in other words, offers a path to deprecate and phase out the old systems entirely.
Whether that'll actually happen is pretty uncertain, to say the least, but it's a possibility that other solutions generally lack.
