Who cares what the A321 was doing or not doing. It was the A330 that ran into it not the other way around. And, it was the A330 that had both the capacity and capability to avoid the accident if they were applying airmanship rather than complacency. Having said that, a poster above did detect a strangeness in the video. The A330 seems stationary (yet the camera is moving) then suddenly the A330 is charging along the taxiway like it had released brakes with throttles advanced. A possible configuration issue with this aircraft type?