What does the HYROX incident tell us about high-endurance sport?

Over the weekend, an Australian athlete was pictured with faeces on her legs, after experiencing a bowel movement during a HYROX fitness competition in China. While such incidents are relatively common in high endurance sports, it has sparked heated debate and raised questions over hygiene and fairness in the competition. It's also prompted broader questions over the benefits, and the short and long term risks associated with pushing the physiological limits of the human body.