Your probably about to get ass raped for spamming without being a contributing member and not reading the forum rules. BUT I just ordered a pair because they look extremely interesting and possibly very fun but I guess we will see about that. Plus who doesn't like to try new things, that's my way of life.
The dude riding moguls in your video is a pussy riding across moguls. Looks like a bunch of beginners jerking around.
3 places I see these binding disks be beneficial.
1) very low intermediate rider that doesn't know any better.
2) beginner to.intermediate urban rider or just on one binding for spinning the board while one footed.
3) the trash pile with every other un used product out there.