Good point. I concede. I'd still expect them to declare an emergency but it's possible that the event was so catastrophic they didn't find the time.

Its even fairly common, one guys is reading checklists and the other is, you know, flying the airplane.

To be fair, communication is different from ADS-B transmissions, which end abruptly at the flight's maximum speed and altitude: https://www.flightradar24.com/data/flights/ps752#23732569