"Why are Muslims so hypersensitive?"

Ayaan Hirsi Ali discusses tolerance and Islam during an interview about her new book Nomad:

If you compare the way Muslims take offence at perceived insults that are not insults, but are just a critical way of looking at their religion, then I start to ask myself, why are Muslims so hypersensitive to criticism and why don't they do anything with it except to respond by denying it or playing the victim? And I've come to the conclusion it's because of the gradual indoctrination – from parents, teachers – that everything in the Qur'an is true; Muhammad is infallible, you have to follow his example and defend Islam at all times, at all costs.