It was interesting to watch how the ejection changed over time. It seemed to me that from in the video @ 6:30 to 6:43 the ejection pattern began to change. The first shots went well clear of the shooters arm to the outside, then a couple fell on the arm, then away again then the trajectory swung to the rear as the gun began to eject up and back instead of to the right.
If I had to bet on the cause I would bet that the ejector is now contacting the case head closer to the center of the case. When I get a chance I think I'll get my 26 out and see how much room there is for the ejector to move or flex. I could easily be completely off base of course.
Decent law abiding people must fear criminals and the law while criminals have nothing to fear.