Two things I found interesting, at around 9:55 to me at least it looks like quite a chunk missing from one of the props. Wonder how they managed that, would have been interesting to watch.
And at around 14:20 the transmitter is showing it's flying in ATTI mode. I don't know if that's because they were using ActiveTrack at the time but the conditions and information on the transmitter don't seem like anything I've read so far that would cause it to automatically switch to ATTI mode. I've not read anything that says it uses ATTI in ActiveTrack either. Interesting.