Most disc golf courses are on public land, we have to be respectful about how we conduct ourselves in these settings. If somebody at the parks dept for the course where that was filmed saw that video, or the old ladies in the neighborhood caught wind of it, how do you think they'd feel about it? It looks like unruly boys being wantonly destructive, like vandals. It's not good, and reflects poorly on the sport. It doesn't matter if they picked up the glass, the act itself just looks bad.
Think about it another way: if you were pulling up to your home course and some kids were out there smashing stuff on one of your baskets, how would you feel? I guarantee there would be some ass-whooping.
I know they didn't mean it that way, and we all did stuff like that as teens, but it is different if you're posting it on youtube and you're the star professional player for a new disc golf company, as well as one of the emerging new faces of the sport.
Anyways, after thinking about it, he will probably take that video down. I hope so.
On another note, I love the slo-mo impact of the predator, you can really see it taco! I always wondered how much the flex test mattered to actual impacts, and I one calculated the bending compression of a disc one would expect upon impact, and this video agrees with that very nicely.