It's happening alot. Many schools are barring Halloween activities, instead holding "Fall Festivals"; Renaissance Fests; Storybook character parades, etc....
It seems like every year, there are more and more who vocally object to Halloween, and instead of just keeping their kids home the day of the costume parade and Halloween party, they are seeking to impose their minority opinion on the majority, and in many instances, succeeding.
I resent these alternatively themed events, because it means I have to provide two costumes--one for school and one for Trick or Treating.