No Christmas celebrations in England, Germany? CS Lewis's point was really rather profound. His original words — "Always winter and never Christmas" — were his way of showing how tyrants operate. They desire two things:
Firstly, they need to create perpetual oppression, a "new normal" which is depressing, ongoing, and which pulls everyone down into the resigned acceptance that there's nothing they can do about it...
Secondly, they need to eradicate all attempts at celebration in the midst of the drudgery, because celebration reminds people of what life could be like and indeed what life should be like if it were not for the tyrants, and so is in danger of breaking the spell.