A project with 5 product in one system is not that easy but if they are going to use the Ethereum blockchain it won't be fast. Are they going to build their own infrastructure in the future?
You misunderstand the project, Ethereum blockchain used in this project only to create stable token like Tether. Other product doesn't depend on ethereum. making 5 product that belong to one company and connect to each other called ecosystem, and it doesn't mean that 5 product in one smart contract !.