'Happy Holidays' seems to be everywhere this year, from Christmas cards, banners in shops and windows etc, and I'm a bit baffled because last year is was all 'Merry Christmas' as it has been forever; why the change?!
Someone at work said it's because 'Merry Christmas' could be deemed as offensive but couldn't explain why, and I've racked my brains but I genuinely cannot think of how this could be deemed as offensive! 
Am I missing something or have people just changed from Merry to Happy...?