Machinebird
Not often I post on here but..
The PIO is somthing of a side issue, because his imediate reaction is to pitch up. The slowing speed will surely then have compounded the roll control problems.
There was a complete and utter breakdown of the methodology in dealing with non normal events. No one called the correct failures, no one allocated tasks, no one had any command of the cockpit far less the aircraft.
PF's initial reaction to pitch is what killed him and everyone else.
We need to look at why he pitched up and why did the pair of them not follow any known procedure for dealing with problems.
If 80% of pilots pitch up when faced with an unexpected stall (witness the Colgan crash) then there's an industry wide problem that needs addressing far more urgently than the roll issue.
(I am not contesting the fact that as the event continued the issue would have worsened his mental state)