I mean not to be that guy but UK is one of PS4's (if not the) biggest market ratio wise and it is the weakest for Nintendo.
So i would have been a bit concerned if it didn't beat it there. It will never match it's sales lifetime WW. I don't even think it will have a debut as big WW.
What are Animal Crossing's total numbers WW?
Do you expect it will sell 11 million in 11 weeks like AC?
What difference would it make if it didn't?