I don't understand why those tires were there in the first place. That track looks unsafe, period. I've seen other videos of the events they have and it looks borderline-redneck.
I do agree that having passengers/GoPro is a bad idea. Some of the clubs I autocross or track with don't allow passengers because they say it leads to people doing stupid things for the sake of showing off.
2011.5 AW M3 sedan ZCP