Nobody is disputing that offering helpful feedback is helpful but that is clearly not what happened here. None of them stood up and said "Hey, have you conside

Nobody is disputing that offering helpful feedback is helpful but that is clearly not what happened here. None of them stood up and said "Hey, have you considered doing X instead of Y?" or "Z might be a better approach, here's my reasoning". They just took the opportunity to make it, and by extension her, into a joke. I can completely understand being upset in that case. If you are going to criticise, at the very least be constructive. Otherwise you aren't helping anyone.