It would also be nice if I could programatically get at the stored data in the spreadsheet. The quiz results do not appear to show up in OneDrive. Feels like this resides in an inaccessible location.
This seems like a basic feature functionlity that is missing from the Flow/Forms interop capabilities. Sharing the entire data set shouldn't be limited to the person who creates the Form. Other team members should be able to have that view/access of the data.