When you drop a holy book upon entering any holy place, there are 2 reactions usual "A Glare" if you are one of "US" and a stronger reaction if you are one of "Them" , but there are always exceptions and am sure if there was someone else wiser/better educated in that mosque , she would probably ask her first what is her problem.

I agree with you, God doesn't need protection from us, you can use the same logic and apply it everywhere else and we can all sit home because god will take care of us, put money in our pockets,food on our tables and will keep us healthy. There is something missing here, why did she enter the mosque in the first place? and what about her dress code ? why did she grab the holy book ? This all reminds me of Ariel Sharon entering the holy mosque just to stir up millions of Muslims, BTW I heard he is shrinking!