From the original story, the person was barred after she purchased a ticket, travelled to New York, and entered the venue. She was with her child and a group of children from the child's school, along with their parents. She was confused, embarrassed, and humiliated for being singled out and kicked out of the venue in front of the group.
She said it wouldn't have been so bad if they had just denied her a ticket. It would have saved her all the time, expense, and embarrassment. However, that is the problem inherent in using facial recognition in this way.