Why? The implication is that only programs run within the explorer shell are safe.
As it is, the explorer shell is the most vulnerable feature of Windows.

... by Apps, you suggest "metro" ......

Hello Mike.
On this point, there are some embedded apps that cannot be uninstalled.

6510

If one opens the file location from a protected area,
the shortcuts could be deleted but that would...

6508

If you are the Administrator,
using the built-in Administrator account,

have access to secpol.msc,
and you are allowed to make changes,
you are responsible for the changes you make.
...

5995

5997

I voted 8 only because Server not included. Server 2012 can use Windows 8 metro apps.
Server is compatible with skinning, docks, start menus, animated wallpapers, etc...
I like Server Manager and...