Traditional banks need £6.7m just for toilet paper, but Monzo can (and has) built an entire banking infrastructure complete with regulatory approval for that amount.
This suggests a velocity and efficiency of the upstart that could result in significantly surpassing traditional banks in the service offered, and continuing to advance at a rate at which the banks will never catch up.
[I'm a Monzo customer and like the service, if nothing else because every transaction is tagged with your GPS location from your phone which makes identifying mystery payments much easier. I think it's a force for good in the banking industry, but inevitably the big players will respond to the threat, and that's ok by me]
/s
I'm betting most traditional organisations are envious of being able to start their architecture from scratch.
In other words, they've built a bank with that 6.7m (+ 1.4m the year before) & they're about to launch current accounts, while the legacy banks struggled to add Touch ID protection to their mobile apps in the same time period. You don't think that's significant?