What the OP seems to be saying is that the emergency abort system actually operates on a “lysine deficiency” basis: if the signal is no longer received, the sel

What the OP seems to be saying is that the emergency abort system actually operates on a “lysine deficiency” basis: if the signal is no longer received, the self-destruct system goes BOOM. I suppose this classifies as “fail-safe”, though if there’s folks riding on the tip of this large sharp shard with the explosive force of a small nuclear weapon I’d be rather concerned about radio transient interference and things like that.