Interesting. Very gyroscope/saucer shaped when he zoomed in on it. I'm assuming the center dot is the reticle so it's clearly moving rapidly as the cloud haze in background isn't making sudden jumps along with the craft, like moving the drone camera up and down or left and right quickly in nudges, but there was a bit there where I couldn't see any background to "anchor" on once zoomed in on it.
Very interesting video either way.