He’s played it at every Porcupine Tree and Steven Wilson solo gig that I’ve attended since he wrote it, and I used to just be bored by it but now I kinda avoid it. I just don’t get it. Haven’t listened to it in a while, so listened to it...doesn’t suck. Guess I just needed time.
I just watched the Lindsey Buckingham Behind the Music video recommended by YouTube, and they use that moment as a background image during one of the transitions. I agree with you, it’s a very special moment.
And the debate mentioned in the documentary in its entirety:
I think Polly Toynbee says something most insightful: "I think it's extraordinarily rare for the religious to be funny, or to be funny about their religion, or even about anybody else's. I think there is a great humour vacuum at the heart of all religion."
In her defense, she is mixed kind of low in that clip. But in not in her defense, her style ("indie") has always been kind of talky, but then she brings out the singing in the chorus. The first album is still my favorite.