Now you mention it: no.
In that video of the teardown you linked to, those guys started their wiiu, did the whole time, date, region...stuff on the wiiu, then proceeded to the rest of the wiiu. But once they got into wii mode, it restarted into wii mode. I think they still had to pair the wiimote, but I'm certain that they didn't had to put in that region and time again for the wii part.
Very odd, considering that the wii mode is completely different from the wiiu mode.
In that video of the teardown you linked to, those guys started their wiiu, did the whole time, date, region...stuff on the wiiu, then proceeded to the rest of the wiiu. But once they got into wii mode, it restarted into wii mode. I think they still had to pair the wiimote, but I'm certain that they didn't had to put in that region and time again for the wii part.
Very odd, considering that the wii mode is completely different from the wiiu mode.