Galaxee, don't confuse drivetrain reprogramming with AVC reprogramming. Those TSBs/ SSCs are reprogramming the ECM/HV ECU, not the NAV or MFD.
If you recall, updating the combination meter for the fuel guage problem required a replacement, not an onboard firmware update. Which by the way, that is on a separate LAN called the BEAN (Body Electronics Area Network).
The NAV can get a firmware update through the DVD. Not sure about the MFD though. The file on the DVD that is actual code is LOADING.KWI.