I used the library in a hobby project, where I used sql outer joins to produce maps to dativity. Dativity controlled the sql transactions to change the process instances. It was simple to implement and it controlled different business processes.
The library itself is stateless thus it has no thread pool or anything that can execute scheduled tasks. Thus the trigger for change needs to come from the outside.
Edit: I do not think dativity tries to replace BPMN. Its an alternative approch with its pros and cons.
