That isn't quite true. In fact, there's no quite about it. In the current RC version on MSDN, it's downright wrong, and simple to achieve too.
So how do you do it?
Before starting the IDE, navigate to
Open general_appcontainer.xml and find the line that contains
Open the IDE and create a Visual C++->Blank App (XAML) project
When created, you can delete almost all things it puts in there. The xaml files, the appxmanifest, the assets and common folders and if you don't need or want precompiled headers you can delete both pch files too.
Now, right click the project file and change these values:
Configuration Properties->General and switch Metro Style App to false.
And there you go! You can compile and debug native, WinRT-less apps using the old guard of WNDCLASSEX and GetModuleHandle type stuff from when men were men and women even moreso. You'll need to readd UNICODE, _UNICODE, _DEBUG/NDEBUG to the preprocessor directives if you need them, and re-enable pdb-generation and the subsystem type in the linker settings.
The only major downside is that the Win32 SDK that comes with this version is severely lacking many major things such as bits for the common controls and GDI32.lib etc. If you have an older SDK you can point it at though, it's isn't that bad. if you don't, you'll also have to remove the entries that aren't kernel32.lib and user32.lib in Linker->Input or generate lib files from the dlls using link.exe.
What does turning the Metro switch off do?
Unsets C/C++->General->Consume Windows Runtime Extensions (No)
This removes the dependency on vscorlib110.dll
Unsets the WINAPI_FAMILY define, which winapifamily.h defaults to WINAPI_FAMILY_DESKTOP_APP
This enables the functions marked in the SDK as being for desktop apps only (basically all the ones you're familiar with from Win32).
Unsets Linker->Windows Metadata->Generate Windows Metadata
Stops the generation of winmd files which have no purpose for non WinRT apps
Removes the non IDE Linker setting: /AppContainer
This turns off the new for Windows 8 [size=2]IMAGE_DLLCHARACTERISTICS_APPCONTAINER flag in the Optional PE Header, and lowers the OS and Subsystem version of the generated exe down to 6.0 (Vista) levels (the default is 6.2 (Win 8))
And that's about it as important stuff goes. Deleting one character and changing three others has turned Microsoft from paragons of virtue, into rotten stinking liars.
If you're only interested in the updated C++ 11 toolchain, it's probably just easier to copy the VC\bin, VC\include and VC\lib directories and use them side by side with your current install of VS. The compiler binaries run on Vista+ as long as msvcr110.dll is in the path somewhere.