Regarding all this back-and-forth about autopilot and having control, let me see if I've got this straight:
- AP was engaged on approach, FO was PF from 800' onwards
- Due to worsening situation, FO did not explicitly disconnect the AP - entirely forgiveable in the circumstances
- FO had hands on the yoke at all times and as soon as the AOA looked iffy provided corrective action
So, the PF was hands-on-yoke, monitoring AOA and providing corrective action, which sounds pretty "in control" to me. Far more importantly, the AAIB considered he was in control and his captain also considered he was in control. At the end of the day that's all that should matter - anything else is just nitpicking to the level of those complaining that Sullenberger and Skiles didn't hit the "ditch" button, even though the structural damage rendered the effectiveness moot.
Great result, and what a thoroughly good bloke to boot.