So if you haven’t played ultimate frisbee, which I never have, here are the basic rules below, and nowhere does it say you have to use your hands. 

Ultimate is a non-contact, self-refereed team sport played with a flying disc (orFrisbee™). Two teams of seven players compete on a playing field about the same length as a football field, but narrower. … Each team defends one endzone. They score a goal if one of their players catches the disc in the opposite end zone.  

Sounds pretty simple, and if you can throw a frisbee with your feet, well, why not? Throwing with your hands seems a lot easier though. Like is anyone going to shoot a basketball with their feet? Hell no, because it’s a lot more difficult. Check out the play in question below. 

That’s pretty crazy footwork, something tells me this dude should be playing soccer, not ultimate frisbee.