My sis works for a national motor dealership that has told its employees they can't have a fairy/angel on top of their Christmas trees in case it offends non-Christians. Well, I'm a non-Christian and it doesn't offend me.
I work for a particularly multicultural and PC council, and interestingly enough, we have received no such directive. I think we'd all go on strike if they tried it, because we all like to share each others' festivals. Leicester celebrates Diwali in a big way, and not just the Hindu & Sikh communities. Likewise, Christmas is a multifaith/multi-cultural thing. If they stopped us having 'symbols of faith' on display at Christmas, they'd have to rethink the Diwali lights, Navratri fireworks and Eid decs too, and that would make for a pretty dull and unfriendly city all round.