Hi Tim,
For security reasons, I do not think demo user switcher is the best thing to use in production and because of this, Mendix limits you in using it in Production. However some good news for you is that, you can use the feedback widget in the production environment by simply modifying the configurations in the widget ( by adding a microflow) as shown below:
Information about it is shown as text below the microflow field
I hope this helps,
Kofi Ghartey-Tagoe