Allow Developers to Rollback to Approved Extension Versions
Allowing developers to roll back a released version to another (approved) version would allow developers to quickly address breaking issues without going through a review process.
Murphy's law - Anything that can go wrong will go wrong. You can't always rely on testing, someday you will push an update that will break something important. It is very scary to work with the Twitch environment without able to rollback updates.