I'm not a pilot but if anything I'd wager the plane was a bit too high and was descending on too steep of a trajectory in the final seconds before touchdown. The weather (wind) conditions may have played a role in rushing the landing, but the touchdown seemed very abrupt. I wonder what the circumstances were leading up to that.
Yes that could've also been the case, approaching too high and then trying to drop speed to catch the glide slope only to find yourself in too steep of a decline.
Going too low could look similar but then I didn't hear the engines picking up speed just before impact so they might've been disillusioned by all the snow around if they were approaching using VFR.
Most likely they weren't stabilised during the approach and a go around would've been the better option.