'Twas the season, but 'tis no more...
Cool, no worries, I had fun while it lasted, now it's time to get back to work.
But I just think it ended a bit too abruptly. Was this part of the plan?
Winter Bash ran until the 5th, and then, as the site, they were put back in their boxes. Not sure what sort of notice you expected, but they were meant to be a limited time thing, and thus are no more.