Although there is no event and I give WG the benefit of the doubt that they really did try and bring a event, since they usually do. Sometimes things happen, maybe they will add some extra benefits into the Christmas event to make up for this loss.
Sucks but I'm not going to hate on WG for it. They've been making a lot of fundamental changes to their game engine and processes lately I can see where they perhaps ran into problems. Best of luck for the next event.