Indeed. Just like that PS3 Kara demo. Very closed off. You can even see a the beginning of the demo of sprite metal "bars" in the door.
Anyway, I still think the Wii U will come out with impressive software, it has to. There is NO reason why we won't get anything unless Nintendo really is skimping that much, but considering Rein is having a boner for it, I'll assume he can showcase his product well on it.
Mark Rein's boner is indeed a desirable asset in this tech driven industry we love so much.