DJI are keen to distance themselves from the situation in Ukraine. Despite the enormous number of DJI drones being used in the conflict, DJI have officially prohibited the sale of their drones to Ukraine or Russia.

https://edition.cnn.com/2022/04/27/tech/dji-drone-sales-susp...

No reports of rescues so DJI's marketing department won't publish anything. That, or they're avoiding it to remain a semblance of neutrality.

They know their drones are being used to drop bombs; they don't want to be associated with that publicly.

The objective in Ukraine right now is Search and Destroy, not Search and Rescue.