To be honest, the BRS is no big deal -it's really there in the Cirrus to get the manufacturer around some handling deficiencies (the spinning characteristics don't, I understand, comply with the certification standards).
This misinformation needs to stop. Read this web info:
Why Cirrus (CAPS & Stall/Spin) Spinning characteristics in the Cirrus SR20/SR22 are conventional. The Europeans did test spin characteristics and published a report to this effect.
What happened is that Cirrus and the FAA both agreed that including a ballistic parachute would afford a pilot additional recovery options for stall/spin accidents. Their research showed that pilots died in planes certified for spins because the pilots either failed to recover correctly or did not have the altitude to recover. Consequently, the FAA (and all subsequent national certifications such as the Europeans) approved an Equivalent Level of Safety (ELOS) for complying with the spin certification requirement. To qualify, Cirrus had to demonstrate that the ballistic parachute would recover a plane in a fully developed spin after 1-1/2 turns. The parachute did.
Cheers
Rick