[martindevans]

I _think_ what you're getting at is that the flight termination system triggered (controlled explosion) but not when it should have (unplanned)?

As far as I understand it once the capsule ejected the Falcon 9 was destinated to break up (due to aerodynamic forces) and that break up would trigger the FTS automatically. So the AFTS triggering was part of the plan.

That said it also doesn't really matter - the test was about what happens to the capsule when something goes wrong and not what happens to the booster.