There is a ton of stuff you can’t do with Settings but only with Control Panel. I don’t think you can admin a Windows machine without ever using Control Panel.
With the past few releases they’ve actually been removing things from the legacy control panel, forcing me to use the new Settings. Sometimes the old options I want just aren’t there, since the new settings are always so oversimplified.
I wonder if anyone has written a third party replacement for both settings applications? If not, it seems like this would be a very desirable utility, particularly as things shift more toward the new Settings app. I smell an opportunity for someone to make a few bucks...