Using radio as alternative backup to wires in huge aircraft.
local RF commanded engine shutdown.
No way ! You want to enable terrorists to command a total engine shutdown ?
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I have worked with some military radio equipment, and it is perfectly possible to protect critical radio signals from being jammed using good and old frequency hopping or making decoding of signals too difficult by crypting with impossible key lenghts and changing them sufficiently often via wires until wires are ok. Also, radios must not be active at all during normal operation. If wires are ok, radios are silent. As they use already some ethernet derivative protocol on their plane, it is not so difficult to add alternative channels like radios.