Look closely, you will not find that they mention anything about the Bitcoin token. The asset they talk about is some centralized Blockchain based technology that they control. Banks will never use Bitcoin, because they want it to fail, they would rather take the best part of it (Blockchain) and create their own centralized technology and push a lot of money into that.
Bitcoin was never eyed by these institutions but rather the technology behind it that made it so popular. Most probably they will create their own blockchain provided with their own cryptocurrency on which they will have a full control. As a matter of fact these banks are really threatened with bitcoin that has already affected their operations and also taking advantage of the mass that is continuing the use of cryptocurrency. Banks are smart, so new people should too.
This way they can manipulate the price by changing the supply and also identifying the customers using the technology. (As required by the regulating authorities in the form of KYC/AML regulations.)
This is the very reason why they did not use bitcoin or any other cryptocurrency but maybe they'll take partial of this knowing bitcoin is at short price range. I'd rather be happy than to be sad knowing that they are going to issue KYC procedures, in fact it is an added security for us, on top of physical security on their establishments.