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?
Per Nintendo's FY End briefing.
Global Sell-In was 11.77M as of 3/31/2020 (11 days).
Sell-Through in US/EUR/JP-only was 13.41M after 6 weeks (really 38 days - opening weekend + 5 weeks).
For comparison to that second number for the same three regions:
AC NH - 13.41M after 5.5 weeks - Link | Launch Quarter: 11.77M shipped in 2.5 weeks
Sun/Moon - 12.15M sold after 6.5 weeks - Link | Launch Quarter: 14.69M shipped in 6.5 weeks
SSBU - >10.0M after 5.5 weeks - Link | Launch Quarter: 12.07M shipped in 4.5 weeks
Sword/Shield - 12.28M after 9 weeks - Link | Launch Quarter: 16.06M shipped in 7 weeks
Note that the above three all launched right before/during Nov/Dec/Jan holiday period and the numbers all reflect result following New Year's holiday. Animal Crossing NH is pacing considerably ahead of all three of these with a late March launch through the end of April.
Next update will be shipped numbers through 6/30/2020 given on 8/7/2020. Based on the sell-through figure through late April, global sell-through should have been in the 15M territory and global sell-in around 16-17M. With all of May/June to sell more, ACNH sell-in should be headed for 19-21M in that 8/7/2020 report.