Oh, certainly not, ECat! Some of our elders would make Pazcoguin sound like Jane Austen. Not to take the thread down the side alley of Profanity Through the Ages, but to take only one example, there is reason to believe that the now almost universal use of the F-word as an intensifier and otherwise was first made commonplace by American GIs in World War II, who had a lot to be intense about (another favorite was "chickensh--;" the men had many good reasons to employ that one, too). I would expect there's a lot of it in the ballet world as well). These uses could be rather ingenious and funny.
All I can tell you is that the swearwords and hyper-colloquial style did not work for me in this excerpt and made it a slog. I just hope I get a few breaks from it in the book.