When answering this question, you need to look at the kinds of industries and customers that Oracle actively serves. Oracle's largest customers can be found in supply chain management, transportation, healthcare, and government. These are all industries where different businesses work closely together and transact (confidential/private) information between each other (B2B). This, of course, needs to be handled with care and should not be leaked to the public.
With this in mind, the choice of Hyperledger Fabric is not very far-fetched. As already explained in Chapter 8, Ethereum Versus Hyperledger, Fabric is intended as a foundation for developing decentralized blockchain solutions in need of a distributed ...