As I said waaayyy back somewhere, it appears that perhaps a more noticeable warning of RA failure would be a good idea in view of the effect this can have on an inattentive crew.
The place where I think Boeing ARE vulnerable is in not mandating the deselection of autothrottle in stall recovery. Something most of us would instinctively do, I'm sure, but this crew did not. It is pretty obvious that the combination of RA fail and autothrottle retention in a stall had not been fully thought out. Even with full and active monitoring of 'max thrust achieved' by PNF (or PF), once those T/Ls closed for the second time.................