You seriously don't see the link? Just as some have decried the protest as being un-Islamic, the protesters were there in the name of Islam, because their religious sensibilities were insulted. It wasn't a secular march to prevent people from insulting each other in general. It was a march by Muslims to complain about and prevent people from insulting Islam. They don't give a shit about insulting others, just as long as Islam isn't the target. As such, the focus is upon Islam itself, because they marched in Islam's name.