Service Fabric still needs help to become a system of choice for an enterprise
Azure Service Fabric is not very popular among corporate software developers - the learning curve is too steep. Corporations just don't have talent readily available to take advantage of the full power of the Service Fabric. There is an interesting (and free) tool allowing development of native Service Fabric microservices with TypeScript or JavaScript, connecting Service Fabric to Node.js JavaScript development ecosystem: SupercondActor Business Platform. Every company has developers familiar with Node.js and JavaScript - very little training is required.