Simply put, they could not turn it into a profitable business, so it eventuelly dwindled and activity died down.
It has a design with a challenging point: Even though the files are sort of stored centralized, access happens through a central gateway. That means a) access is rather slow, so it’s more of a cold storage solution and b) if you have a lot of congruent access, which will happen quickly in larger orgs, than the gateway needs to he respectively powerful with relatively large storage by its own. Those point made it rather inflexible in usage while being rather complex to setup.