Airspeed
In descent, 447's airspeed (velocity) was seldom below 300 knots. Indications were what put them in the grinder in the first place. So any discussion of indications or "How bad was the Stall", are meaningless.
She impacted with a velocity around 240 knots.
"sixty knots" is extraneous information. A pilot who confuses a reoccurring Stall Warn and increasing velocity with decreasing Pitch such that he pulls back, is too in the weeds to fly. Neither of the other two could have done any better, using available data from CVR.
jmo