Brown says that he was there on the "very same night that the Times came to review the show," so the show was frozen and it was too late to give constructive feedback.
I think there is a distinction between giving feedback at a point it could be helpful and giving feedback at a point when it's too late. It may be worthwhile to give feedback on a novel when it's in the rough draft phase, but there's not as much of a point in giving that feedback once it's been published. Or pointing out problems with a potential wedding reception venue vs pointing out those same problems after the reception is over.
"What was the name of that cheese that I like?"
"you can't run away forever...but there's nothing wrong with getting a good head start"
"well I hope and I pray, that maybe someday, you'll walk in the room with my heart"