[oldE]

We are not talking "everyone" here.
I doubt the story would have hit the news if the person laughing was some random individual. But in this case the person who got called out was working in customer service. They were not being paid to have fun at a customer's expense. They were being paid to represent their company.
If they wanted to talk about the unusual name in the break room or off the job, I understand that. But their behaviour was not professional. Censure was appropriate.

Best
Les