I sent the link to the video to my sister-in-law, who sings with the symphony chorus, and she loved it.

Everybody who ever dreamed of singing a song to an audience should watch that video. Jane is a pro! Every movement she makes is right. She handles the microphone beautifully. Her clothes, her hair, her expressions are all under her control and they are right for the song and the audience. And the audience loves her.

You could probably do a PH D dissertation in linguistics on the vowels and intonation in that performance. As singers, my sis-in-law and I agreed that the vowels are fascinating.

As for 'PC,' the song was written by a Jewish guy about a Jewish family. What's not to be PC?