I hate this phrase and any iteration of it:
'You need to do better'
'We need to do better'
'Do better, people!'
Who the fuck are you? The sole arbiter of whats better?
Personally I didn't think this Erin guy did anything outrageous. He didn't pull a Cisternino and throw a tantrum. He was just more or less exhausted with the number of people so unaware of their surroundings.
Seeing people film themselves at the gym is a major pet peeve of mine but it's the world we live in. If I see it I try to avoid it. If I don't see it and fuck up your shot, tough shit.