Did you read the article? It’s not about the song. It’s about the nihilism the song stands for.
Some early 20th century writer noted the increasing lack of morality coupled with the decline in religious grounding, and said "Being a humanist is hard work".
Nihilists/"Humanists"/SJWs don't think the Ten Commandments apply to them. Or in Lennon's case, throw in "artistes".