Maybe her parents are religious in the sense that they go to church every once in a while, that doesnt mean that they've actually made any attempt to raise their daughter religiously. Would genuinely religious parents allow their daughter to go to Malaguf? I doubt it. I think it sounds more like the parents trying to divert attention away from their complete parenting failure in all honesty.
Anyway, this girl is just the tip of the iceberg. What about the thousands of others who disgrace themselves every week, are they rebelling against religion too? I dont see many Muslim girls acting in the same manner incidentally, and one would expect an even greater backlash against that upbringing. In all honesty they're just working class kids who are the product of a society in which everything goes, in which the media have gradually chipped away at the very idea that certain behaviour is just not right. When is it not fashionable to sneer at 'middle England Daily Mail readers' in 2014. The moral authority has almost entirely shifted towards relativism and moral ambiguity.
Somewhere inbetween terrible parenting, feminists etc destroying the very concept of modesty and 21 century Geordie Shore mass culture you have a generation of people who actually dont know any better. People who struggle to string a coherent sentence together since they were never shamed into learning coherent(and employable English) or who consider sucking 24 dicks on a nightclub floor to be an acceptable night out.
I have no idea if anybody actually wanted this free for all or not, but any society which has the very concept of 'slut walks' was always going to end up here. Chav culture, educational failure, dumbing down of society generally, it was the inevitable result of the left dismantling the previous, self- responsible culture with a concept of absolute right and wrong and replacing it with this free for all. Middle/Upper class families can keep it together, but many working class families never had a hope and it is their daughters who find themselves living these sorts of lives.
Sadly we're way too far down the line at this stage, the old culture is alive in good families but very few of these are working class families. The media have no interest in anything but propagating the crap they do and those in government/media are very much products of the 1960s themselves who cant even see the problem in this madness. This underclass is here to stay.