>
It looks like they all start attempting to land before their batteries run out, around the same time...That doesn’t immediately sound very plausible to me (as a layman who’s never dealt with drones but has dealt with battery-powered devices): I can’t imagine auto-power-down being based on flight time: surely it would be driven by battery voltage measurements, since batteries vary somewhat to begin with and vary a lot more as they age; and I then wouldn’t expect such homogeneity of battery lives that they would all drop out of the sky in such a short range of time.
You could say that their not all behaving in the same way at the same time supports the idea of low-battery emergency landing, but I think that could be adequately explained by network congestion effects too, which could line up with the claim of an attack if such an attack were some sort of frequency jamming or network saturation thing (I don’t know what wireless systems such drones use).
(The second video, “another view”, is much more interesting than the first, showing the constellation going from full strength to about two dozen left 30 seconds later, with another dozen subsequently failing very close to simultaneously in the last second of the video—I wish the video had gone for even two seconds more.)