Just view the article as an interesting sign of a shifting social norm. It has been decades now since "shit" and "piss" have been pretty normal, not taboo, words in European English (possibly aided by their resemblance to German and French counterparts that are less profane than the English words), and I had already observed that a softening has been occurring in North American and Australian English at least since social media gave people the opportunity to broadcast their use of the words.