I do this too, but often I need to use my mouse to select a control panel item or file. That's very annoying. Why would they get rid of universal search from Windows 7?
So what about users who discovered things with a mouse? Are they just banished to Metro, never to return? Every time I read some defence of Windows 8' it's always "Oh everything is the same, just use all these keyboard shortcuts you never knew until now, and have never once seen causal users use".
If you have to touch the keyboard and simply know a comamand and there is no easier way to invoke it, it's bad, non-discoverable UI design.
You can filter using keyboard shortcuts or the mouse, so I think that's fine, I just want an unfiltered view. There used to be universal search and now there isn't.
Universal, I think, also implies single unified search. OSX has this, iOS has this, Android has this, Windows 7 has this. Heck even Windows Vista has this. Windows 8? Nope. This is the most frustrating part of using Windows 8.