GJ group file upload not automatically published and no notification

Member uploaded file to the group. It wasn't automatically published and I didn't get any automated notification. It seems a bit odd. If it's not automatically published I'd want a notification, but anyway I'd prefer that they are automatically published. I went looking at the config and found this:
 

Why are the choices for "new file needs approval" notify or don't notify? I think I'd expect to see choices "yes" or "no" to that question.

I see there's an option to control file approval at the time of creating a group through the front end, but there's no option in the back end to alter this choice, as far as I can see.
 

Now I see through the front end that my committee group has files enabled without need for approval. That doesn't seem consistent with what I described at the top of this thread.