A long landing was cited in several press reports. Of course we have to be careful to speculate on this and wait for the official report. However, long landings are often a factor in landing overruns. See e.g.:
A Study of Runway Excursions from a European Perspective
Landing long: Why does it happen?
Running out of runway: Analysis of 35 years of landing overrun accidents
ATSB study on runway excursions