I call bullnumber 2 on some of that video , just my thoughts
I would say it is right on. I have seen those suits and they can do crazy stuff. Like a flying squirrel. Looking at that approach if the angle is not right you pop the chute. I bet he made runs too high and some too low and had hit the silk before getteing it right. It would make it more believable to see the mistakes also. But I was not there so I am not saying it is real just that I think it is.