I'm sorry that you felt like you were held hostage by Telemetry/Studies. With the exception of the hotfix, we disabled rolling out new Studies during the incident, and will not be re-enabling them until some time after Monday next week.

We are also completely deleting all Telemetry and Studies data received in the week following the incident to ensure we respect people who had concerns like yours, but enabled Studies in order to receive the hotfix.

Specific details and timestamps are in the post at https://blog.mozilla.org/blog/2019/05/09/what-we-do-when-thi...