There is way too much focus on the CVR here. There would be no "smoking gun" to point at.
Just another missing piece of the puzzle.
This will be a very interesting report when it does come out.
this video may explain some of the issues....AC A320-200 flightdeck tour...those screens would be difficult to use! I see why they lined up on the TWY now, after watching that for 6 hours!
https://www.youtube.com/watch?v=mj3Y0hyQrOA
Maybe the FO was flying and is left handed...