Of course it does. If MeeGo wouldn't be closer to a full desktop operating system, there would be no point to it, since Symbian is much lighter. Some functionality will be easy to implement on MeeGo and very hard on Symbian. Qt can't abstract away the things that a lighter operating system will inevitably be missing, and in many cases people will want and need to use other libraries than Qt.
Anyone who thinks MeeGo is a 'whatsthat' will most likely understand Qt even less. If the objective is to work around the Symbian brand, the best solution might be to start pushing Orbit and DirectUI branding, not Qt.