This is remarkably similar to some UFO crank I tried debating on Youtube a few years back. (I know, I know…)
Guy zoomed in on an airplane light, making it blurry, tinkered with the video settings to bring out some different colors. I simply pointed out that - hey, isn’t it odd that the flashing has the exact same characteristics, namely the period of flashing time, as an airplane?
Similar results, the guy made up some nonsense about how it wasn’t an airplane, and that his buddy worked at Adobe and had “analyzed” the clip to prove it wasn’t fake. (Note: Even if his friend was legit, you needn’t alter the video to get something weird zooming way in on an airplane at night)
At the end of the day, I think these folks mainly want attention. They might think that they can turn this attention into something profitable (usually selling a book), or they just might crave attention, end of story. The folks that buy into it want either a community to be a part of, or a sense of wonder and mystery, or some feeling that there’s order and a higher meaning to the world.