Group should be an event setting rather than just in the event emails. My limited admins keep emailing our entire membership because it is not obvious to them where to set the group in the event creation. It is much more intuitive to them for the group to be part of event creation. I don't necessarily need to restrict registration to a specific group, although I can see how it might be valuable. It's causing people to unsubscribe all messages when they get emails for events not directly for their group!