Why did the Zhat Vash fleet not kill the jettisoned drones in outer space?
- We know from First Contact that drones can even work in outer space without a space suit.
- We know from the Voyager episode "Mortal Coil" that Borg can revive drones up to 73 hours after death with their nano-probes.
It would be surprising if the Zhat Vash were not aware of this, because:
- Oh is Zhat Vash and has probably access even to secret information in Starfleet and for sure pulled important stuff about all (partially) artificial life.
- They did a lot of medical work on the Artifact with Borg drones.
They should be aware that probably some or all of these drones could be reactivated by Seven. Because of their fear about all artificial life, they should have destroyed them before they left.