I still am not sure I'm awake, but the device is bizarre. Used for spinning students, okay, I'd go along with that, but to carry it for the life of the aircraft in normal circumstances is bewildering. And the explosive bits? Oh, my.
This has been done to death too but still keeps coming up. The Cirrus cannot be flown without a ballistic recovery system as it is the only certified means of recovering from a spin for this type of aircraft. Hence "BRS INOP" always equals aircraft grounded until maintenance is performed and signed off for.
Ciao,
Dg800