“When a member of the Kinnock family asked me for a photograph I thought it only polite to say yes. Nelson Mandela had a history of bringing people together.” - David CameronIt seems that people don't think that selfie at a funeral is the done thing, except this was a memorial and not a funeral. It was a memorial where the majority of the stadium were singing and dancing for much of the time. It was not a sombre and sad day, it came across as joyous and happy. Take a step back and look at all of this in perspective, then chill the hell out.
It could be worse, it's not as if they took a picture of the coffin as some people in the world do.