IMHO it takes quite a stretch of imagination to apply designation "under control" to stalled airliner.
Yet you acknowledge 447 was STALLED all the way down; pilot kept the nose up, lowered it, and raised it, roll was responsive though excursive, and yaw was certainly in control.
Explain? Was she fully stalled, partially? Any stall that is recovered with normal controls proves there was control in the STALL. Any STALL. airbus has video of a recovery that proves this.