A sophisticated Aegis-equipped ship are concerned about drones? Where is the video?
Aren’t these ships equipped with MK 15 Phalanx Close-In Weapons Systems.
There wouldn’t necessarily be much to see on a video. Just a guess, but I’ve seen radar exercises put on ny USN aircraft dispersing small drones like chaff. The drones can be cued by the RIO to swarm fixed targets. It would seem logical that the next move might be to swarm a naval ship underway.