>>912 Or he's up late. It's not abnormal to burn the midnight oil when you don't have an early start the next day.
Another angle on this plane video;
It was obviously taken well after landing after the crew had disembarked. If TH was on board, he would have been one of the first off the plane. Maybe the videographer missed him.
This is all a bit too Area 51 for me and I say this as someone who has seen a UFO