Some people have a hard time accepting that people are generally products of their environment. The kind who get up in arms if you call, say, Florence Nightingale a racist. She was. All the good she did won't change that. Most everybody in her social milieu was back then. Go back far enough, it's a description more than a condemnation. Obviously racism etc still wasn't right back then, but society had yet to learn better and 'heroes' are still human.

So enjoy the perfect dancing done by two imperfect people.