It's similar in UK
Whilst there is no law specifically prohibiting listening to ATC broadcasts it is illegal to act on the information in any way, share it or re-transmit it.
I personally find it reassuring that I can do my job day to day without the threat of a recording of my voice being put on youtube to be judged out of context by people who usually know little about aviation.
The only people who think this is a cover up don't know what they're on about. It's been fully reported through the correct channels and will be investigated.
However - "Cover up" makes much better headlines than " incident being investigated through normal processes" or "Media company being prosecuted for breaking the law"