Well, everyone (literally) has talked about the terrifying 1'6" thing on the side, so I'll call attention to the god-like Japanese woman in a straw hat that is apparently the world-record judge.
I mean, honestly. I'm no weaboo. I find Japanese culture hard to relate to. I don't really know anything about it beyond basic human truths. Would they find this clip completely unwatchable without a some-level-of-famous person smiling in a picture-in-picture?