According to my understanding of the report, this would be a probable sequence of events:
Pilots briefing maps, using lights and reducing night vision.
IRU malfunctioning.
Pilots startled by strange PFD displays.
Pilots taking action.
No communication who is in control and no double checking of instruments can be heard on the CVR.
This was one malfunctioning instrument that would have been easy to spot if a comparison had been made between LHS and RHS. Noone did, noone thought "pitch, power" and landed safely.
How many AF447 will there continue to be?