It’s proof of nothing except the use of unnamed experts and sources to put a sensational meaning onto alleged statements by more unnamed officials by ABC.
And people wonder why there is so much confusion and conspiracy theories everywhere. Look no further that journalistic abuse by desperate media.
Carefully parse the story and there is no there there.
I’m not watching TV news so I’m not exposed to as much aviation info. Are you seeing a possible malfunction reason for these two signals to be turned off at separate times? Or that this info might not be accurate?