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 !.
So, it won't make the ethereum network overclogged, isn't it? I'm not sure how and when they gonna make their own blockchain so ethereum network won't be overclogged and the users would not get problem for each transaction.
Whole UniFox infrastructure is run by UniFox blokchain and so does FOX token. Unifox blockchain was created by forking Eth blokchain.