To answer your question, nothing has happened other than the weariness of constant insult. The people with some form of religious/spiritual outlook are quite varied in their beliefs, be they Christians, Jews, Muslims, Hindus, Buddhists, Jains, Taoists or whatever, I've never heard anyone of these different faiths be insulting to one another, or to atheists.
The atheist contingent have only one 'belief' which is the negative, "There ain't no God" and that's it really. Few of them have any understanding or interest in these religions or theology and it's history, (naomi perhaps does) so every topic descends into insults and bigotry.
The question shouldn't be "What happened", but more, what's the point?