Dependence on an App is not good for long term viability. Before joining any new ecosystem I check if there is a clear route to transition out of it in the long term. People like me are allergic to lock-in-effects and provider/service-dependencies that could lock oneself out of ones own data if the provider shuts down. Given that export to a common format like pptx works great I will consider this software.

The paradox here is that the better the export functionality works the less people will actually need it.