This is what got me thinking about the issue. As someone mentioned earlier in the thread, many aerobatic aircraft have enough rudder authority to maintain altitude in (or near) a 90 degree bank. But it turns out that the MD-11 can also achieve, or nearly achieve this as well.
That's why I'm asking about particular aircraft types. The video talks about a different situation, I'm just speculating as to whether the rudder could be used like this in different scenarios.