I could see the pilot panic pulling. Instead of building speed and pulling up gently, he was repeatedly slamming the stick to his dick which only stalls you out again.
It was dangerous moment and I'm glad nobody got hurt. However I must admit, what a great job skydiver did filming plane's recovery process. Whole incident might have shortened your plan for the jump, but this turned out to be platinum standard footage.
Oh. So that's a stall. I had it pictured as a symmetrical lose of liift that can be corrected by nose down and increase power. That plane looked like a leaf in the wind.
It's scary seeing a twin engine aircraft entering a spin. The vast majority of multi-engine aircraft are not recoverable from a spin because the weight of the engines on the wing generate pro-spin inertial forces that are too strong to be overcome by spin recovery procedures.
Stall ? no, the pilot does a dive to quickly return and land, saving fuel and money. These are commercial operations and time is fuel and fuel is money. Glider tow planes can also do similar maneuvers after releasing the glider.
What about the last bloke that released from the plane far from the others? Was he able to gradually land with the others? The distance looked too great.
I almost find it funny. Plane: gets really slow to let divers get out, stalls. Plane enters spin, but pilot quickly applies opposite rudder, and noses down. Proceeds to pull up too hard, and stall again. Again, quickly recovers the spin, but pulls out of the dive too hard, and stalls a third time. Pilot recovers spin a third time, pulls too hard, one wing partially stalls, but aircraft is recovered successfully.