Thus, it is entirely conceivable that banks could, for instance, set up a new digital booking and clearing system amongst themselves enabling them to offer client transactions featuring the benefits of the blockchain, such as speed, efficiency, internationality and cost savings.
Who is attacking? If I read it correctly, it's the banks. Banks are facing challenges from bitcoin and they need to attack bitcoin to defend. They are also filing patents on custom uses of blockchain technology to defend against other banks.
they want to create database 2.0 - we have to be careful
This pretty much sums up their stance.