While I have been reading all of this stuff for the last 2+ years, I may have forgotten something -- but here goes anyway. This most recent discussion has been whether the crew could have done something better to identify and recover from the stall. But doesn't this beg the question of, "why did they get into the stall in the first place?"
The plane was cruising in level flight at FL350, when (presumably) the pitots iced, speed indications became unreliable, and the autopilot clicked off. The PF reacted to this "situation" by hauling back on the sidestick and zoom-climbing to FL380. This zoom-climb then caused the stall.
Now has any reason been presented explaining why the PF's reaction to the aforementioned events was logical and appropriate for an A330-trained and rated pilot? Unless such an explanation exists, I think the source of the problem (and an important contributor to why there was no successful subsequent maneuvering to a recovery) becomes fairly apparent.