Angels and "Magic" stars are cool-no questions asked, but a big cookpot isn't?
Jezus Christ!!! (pun intended...)
It's like someone once said about writing science fiction. You get ONE major violation of mundane reality, and everything else has to conform to that violation or to mundane reality. So, given the incarnation of a god, magic stars, angels, and wise men from the east all follow. But giant, EXPENSIVE cooking pots? No dice.
Similarly, the new Asian theme gets to have intelligent dragons, but gravity and everything else still works as it does in this world.
Speaking of Asia, maybe one day PM will do a Birth of Buddha set. Now that's a weird one! No shepherds though.