The crew reported that after descending through the cloud cover, they made visual contact with the runway at between 1000 feet and 700 feet above ground level. According to the Flight Data Recorder (FDR), the aircraft was traveling at the Vref (landing) airspeed of 148 knots, with a groundspeed of 162 knots, i.e. with a tailwind component of 14 knots, when the wheels made initial contact at about 4,000 feet down the 8,900-foot runway.
There's an unresolved question here: How does an aircraft come to touch down 4,000' down a runway at Vref speed? If the approach, which was an ILS, was stable to the flare (and there's no reference that it wasn't) then the aircraft must have floated for ~10 seconds (2800'/273.6 fps). How does it do that and remain at Vref speed until it touched down?
The choices seem to be either, the approach was not vertically stable in the late stages, the approach speed was higher than Vref, power was not initially retarded at the flare, or there were changes in windspeed and direction sufficient to offset the energy that should have been dissipating during the float.
Any one of those explanations requires more information than what has been released so far.
ELAC