What's most annoying is their insistence that the haka is done immediately before kick off, no response allowed. It should at least be followed by the anthems.
Interesting historical fact- the first time an anthem was sung at an international sporting event was in 1905 at the Wales v New Zeland rugby match. After the haka the crowd began singing "Hen Wlad fy Nhadau" as a response. Wales went on to win (the first of only 3 wind against NZ)