Setting Start Screen background same as desktop background ?

I am aware that the RTM build of Windows 8 allows some more customizations with the Start Screen background, but if we are able to set the same background for the start screen and the desktop, wouldn't it unify the experience and stop people from complaining that the start screen is hijacking my monitor ? I am not how this would have worked out, but maybe MS is rightfully brave in restricting the customization and disallowing people to distain the metro experience.