I'll not throw mud or ridicule any particular poster in this forum.... but there are claims being made which would have a 1st year student of aerodynamics choking on his beer.
Please remember guys that this unique event came at the end of a long sector..and it was an event which was neither expected nor trained-for.
Double-engine roll-back late on approach with inadequate/confusing instrument readings. We've had 2 years now to consider this event - supported by special and update bulletins from the AAIB.
Those guys had less time to diagnose and react than takes most of us to punch a number into our cellphones. I could be in a minority here but my belief remains that the happy outcome more than justifies the fact that, despite their limited very options, they discharged their obligations in a thoroughly professional manner.
Happy New Year to all bm.