2 thoughts:
1. Those pilots just barely escaped disaster by waiting sooo long with going around, really pretty scary
2. I've flown the 320 family in some pretty weird conditions, initiated a GA a few times, but such roll-manoeuvers don't occur not even in the most wild circumstances, if you understand the Airbus logic and let the aircraft sort out the gusts, and you steering the main thing. A trainer not long ago compared the 320 with a horse carriage: you only tell were you want to go, and the horses will pull the cart for you and correct for bumps in the road.
The short film looks like 99% PIO to me. And then 1% bad airmanship.
And maybe even 0,01% of pure luck?
P77