Perhaps related [1]. In this case, these transmitters would have prevented the collision. It may seem crazy, but a collision with a large military aircraft out in the middle of nowhere has happened before.
>Neither aircraft was equipped with TCAS collision avoidance systems, and although both crews had filed a flight plan, the German aircraft was not in contact with Namibian air traffic control and controllers were unaware of its presence in Namibian airspace. Furthermore, the Tupolev was flying at the wrong altitude, according to its flight plan and to the semicircular rule.
Kabul’s airspace was a mess of civilian and military planes [1][2]. You want the Spanish A310 to know it’s barrelling towards a Superfortress.
[1] https://en.m.wikipedia.org/wiki/2021_Kabul_airlift
[2] https://twitter.com/defencegeek/status/1427012384502292480?s...