You may be onto something. That would explain the video, and it would also answer the question: Why did the bomber wait until the plane was almost landed? That seemed strange that he was instructed not to detonate until the plane was over Detroit.
Well that part didn’t puzzle me. I presumed the notion was that if detonated at that point, the blast might impact/destroy via secondary explosions other nearby aircraft, whether in the air or on the ground; or have a similar impact on the airport itself.