but if, as we suspect, they flew headlong into CB then they would be subjected to such massively differing conditions, huge updrafts, multiple lightening strikes, changes in wind direction, intensity,ice ingestion, potential for engine flame out etc. Its possible that NO aircraft would be flyable under those conditions -or even maintain structural integrity as it appears AF447 mostly did.
Tho 'handflyability' w/o machine assistance is something needed, wouldnt they be better off if they had REAL weather radar (one that did the active scanning up and down and around and with different intensity parameters..automatically), + training how to use it?