A very nice roundup. I think there is so much bandwagoning going on in banking, your Dilbert cartoon sums it up perfectly.

I think if you’re going to have a small group creating a permission blockchain then just use a database with a multi-signature read-write permission system. They are faster and well understood. Blockchains are useful when you want trustless decentralised immutable data entries, and for that to work you need incentives structures through a token of value and a well thought out game theory to incentivize miners (proof of work) or holders(proof of stake) to secure it.