Right now the PublishToPowerBI connector only publishes to "My Workspace." I manage datasets that feed reports for multiple workspaces, some of which are not necessarily personal workspaces (so there is no login associated). A drop-down that lets you select which workspace, that you are a member of, would be fantastic!
The workaround right now is to ETL in Alteryx then save the dataset out to OneDrive. You can then "Publish" the Excel sheet to Power BI natively, and the data refreshes once an hour. This works for some data, but we have use cases that need refresh rates much higher than that. Plus publishing directly to Power BI would be ideal.