First, where's the beer?
Yes, the shackle was in the open position and the bridle was still on the velcro. As if the shackle wasn't properly closed and/or opened as the risers released. The reserve closing loop was also in tact so it appears Maty pulled before the cypress could fire.
The gear was all new. Toggles were still stiff, and if you're not careful, you can slip the loop past the stiff part. While annoying and in a spin, it's only one toggle in half brakes on a big main. Simply applying half brakes to the other side would have corrected the spin. And you can land in half brakes without the cutaway. I've seen it done. I'm not a rigger, just a friend who was on that jump.
Props to Maty for pulling both handles. I dislike this website but want to know where the beer is......