A skydive with a larger than average risk of being a disaster. From the video I saw four things that were dangerous happening in one dive, all of which could have easily been avoided.
We've all been on dives where there were problems; one guy who decides to sitfly, or one guy who went so low he was hard to see on breakoff, or one guy who could simply not control his closing speed and came screaming in to grips. Or a planned belly exit that suddenly becomes a head down, or a very poorly timed exit. Those things happen, and you learn from them. On this dive, though, all that stuff happened at once. To me that would be a screaming warning sign to fix the problems before they contribute to a much bigger problem (freefall collision, or freefall/canopy collision.)