Did neither Pilot raise the Collective upon realizing there was an airspeed problem as they approached the Minimum Altitude?
Were there any comments, declarations, or calls reporting taking such action or having taken such action?
Why were they so blind in failing to monitor the Airspeed and ROD as they were in the portion of the approach where they would have been either about to or were in the process of leveling off from the descent to Minimum Altitude?
There is far more to this than is being reported by the AAIB at this time in my view.
Again, they are begging more questions than they are answering.
Why not hold off and make a much more detailed report of their findings?