I received an email to take a survey, so I did and it was about shared access to my controller.
During the short survey it asked if I had shared access with anyone. Yes, I did. The critical question missing from the survey was how did I share access. I suspect you are assuming the responder used your controller shared access in your app, but there are many people (our family included) who simply toss the controller username/password in a password manager we share with our spouse and they use it that way. I was hoping the survey would ask me, but it never did. It just asked if I had, when I did, why I did, and if it was easy. It never asked me how I shared access.