At SquareScale we agree that while stateful applications are very real and that most of the apps currently running in the world are probably stateful, we also believe that the future is in scalable, stateless applications.
Decades of hosting companies brought plenty of choice for anyone wanting to host legacy, stateful apps.
That's why we made the choice to focus on providing first a fully cloud native solution, and that includes offering everything needed for a stateless micro-service application and its lifecycle.
That being said, while we favor stateless applications, we'll also support stateful applications in the near future.
Some recommended reading about stateless applications: