Seems to be a lot of blame laid on the autothrottle / autothrust and the automatics. Having many thousands of hours on the A320 and A330 myself, where the autothrust is left on throughout the approach, we still had a good eye on the airspeed.
Relying on the automatics to the extent that this crew appear to have done is likely to result in a problem of this type at some time. An airspeed of 106knots with a flying approach speed of generally around 140knots is just ridiculous and, frankly, negligent.