I think people are making a mountain out of a molehill here. The reason that Christmas brings you back to a generic holiday page is there are too many items for a consumer to search through. Do you want Christmas trees or Christmas cards, or Christmas paper, or Christmas ornaments, or etc.. Without narrowing the search, the consumer would have to go through 8,000 items to find what they are looking for. With Hannakuh or Kwaanza, the search results are much smaller allowing the consumer to find their item rather quickly.
I suspect it is someone playing around with the site to create a buz....