Here's Apple's Enterprise terms definition of "Permitted Users":
“Permitted Users” means employees and contractors of Your Permitted Entity who have written
and binding agreements with You or Your Permitted Entity to protect Your Internal Use
Application from unauthorized use in accordance with the terms of this Agreement.
If the research panel subjects were under a written agreement to only use the app in the manner it was intended – such as keeping aspects of its use confidential, or disabling it when other non-compensated others were using their devices – doesn't that match the definition? Or are you claiming some other "circular" bootstrapping of extra fuzzy limitations on what "Permitted Users" are?
“Permitted Users” means employees and contractors of Your Permitted Entity who have written and binding agreements with You or Your Permitted Entity to protect Your Internal Use Application from unauthorized use in accordance with the terms of this Agreement.
If the research panel subjects were under a written agreement to only use the app in the manner it was intended – such as keeping aspects of its use confidential, or disabling it when other non-compensated others were using their devices – doesn't that match the definition? Or are you claiming some other "circular" bootstrapping of extra fuzzy limitations on what "Permitted Users" are?