Commentary to the video mentioned sudden gust of wind just before "arrival"... more like cross wind disappeared over the threshold if you look at what he is doing after he went over the fence.
Obviously not lined up at any stage on the centre line cos he sure gave the right rudder pedal a belting...about the time he should have given the left peddle a nudge.
This arrival could sit well amongst some of the doozies on R13 at KaiTak.
Perhaps he was trying to replicate the JetBlue sound and light show, albeit with a new and interesting technique.
Those Bus thingies are a bit sloppy over the threshold which also wouldnt have helped him.
Brand new piece of kit so assume this will put TG's New York direct schedule in a somewhat difficult situation.
Bad hair day but glad everyone walked away.