The preview mentioned something about their testers getting tired, I'm not too worried about this because I work in the produce section of a NoFrills and my arms and hands are quite used to handle short and quick movements for long periods of time, it's a boring part-time job but it's gonna be useful for something afterall.
What am I trying to say in relation to the Wii controller movements? Well, over time your bodies will adapt and not get tired so quickly. So why even think about using the GC controller when I can have fun gesturing the attacks.
The game, even though it was PS2 wise, looks beautiful btw.