We need relationship support between tables created programmatically. currently all data has to be denormalized and kept in a single table
The current feeling as a customer is that if we devote dev resources to build against the API, we are still second class citizens to one-off data connectors as implemented by the PowerBI team. All our data is in NoSQL stores (Document DB) so currently we have no way of getting it into PowerBI except in simple non-relational tables using the REST API.
