Power BI allows the developer to access data either by a direct connection to a database or by importing a dataset from a database. The import makes the operations in the Power BI report faster because the app doesn't have to go directly to the database, but the data is not fresh.
Are any plans to create an FME writer that could access and write to Power BI to emulate the import process? That way an FME script could be run on a regular basis to refresh the imported data.