In my app I am using both SharePoint and SQL server as datasources. As per my previous DLP it was allowed. Now I have created a new DLP for the same environment in which I have kept SharePoint in Business data only section and SQL in the other. Ideally I would expect my app to stop working as my current DLP doesnt allow both SharePoint and SQL to work together. However, my app still works.
I think this should be changed. Otherwise changes in DLPs will become really difficult at a point when there are hurders of app created in an environment.