Her Daughter Was Disappointed
One of those who was enraged that Ed was unaware that the star was his daughter expressed her displeasure with Ed, possibly because she loved the pop star’s music. Because she was envious of her father’s meeting with the celebrity, she mistook it for a personal insult. She even sent her father a message in which she called the Modern Family actor a moron in response to his mistake.
After The Realization
When he realized he’d taken a photo with a celebrity, he found it both amusing and slightly embarrassing that he didn’t recognize her at the time. He then called the singer’s agent to express his regret for failing to recognize one of the world’s most famous women. He clearly needs to brush up on his contemporary pop culture knowledge.