If I were the people around me; I'd never ever take to criticize, or say how bad something is done. organized, made until I have been through it and did the same thing too.
It's so easy to be all "OMG that prayer thing they did was so empty/ fruitless/ unprofessional/ insert all of those things you know you say."
That's the easiest thing to be, just a say-er.
Take up the huge responsibility of organizing or leading an event, after it your mouth will stay sealed with the sweet seal of humbleness. And this I speak from my own experience.