Dozy
(at which point the aircraft approached and entered stall) for 57 seconds, after which point the aircraft was already unrecoverable.
I've been on the road a bit, but is this a personal conclusion, or a BEA statement?
To my mind, the aircraft was only unrecoverable when they ran out of altitude with which to recover. I haven't seen anything authoritative on the subject that says it was absolutely unrecoverable once deeply stalled.