A big elepant in the room.
The inmarsat data is derived from ACARS pings.
The press releases say that ACARS had been deliberately switched off.
MAKE UP YOUR MIND.
Theory - ACARS can communicate via VHF and via satellite.
The VHF antenna or its cable were damaged (depressurisation or structural ?) but the ACARS unit was NOT switched off, it simply switched to using the satellite.
Either someone is lying or this takes us back to a catastrophic failure rather than human intervention.