It’s worth noting that the act of surfing isn’t just limited to riding a board. Technically, as long as you’re able to catch a wave it doesn’t quite matter what you’re riding. Just look at Fred David and Toby Cunningham, they’re using a sumo suit in Nazaré and do just fine.
Hopefully, this won’t spur a whole sumo suit revolution, which I fear would overtake traditional surfing. Just imagine a whole lineup filled with these sumo surfers. My god, the horror.