You'd think so, but it doesn't,
at all.
Refer to
https://extreme.otago.ac.nz/ojs/index.php/NZMSJ/article/viewFile/444/168 for a really interesting and thorough article about medical student statistics. Regarding your opinion, the article shows that while the European population of NZ is 77%, the 2006 class (and certainly our one) was about 50% European. Asian (+indian) are 10% of the population whereas they represented ~35% of the auckland medical school cohort (and still do, if not more)
So please, dont anyone think that the selection is racist in any way. They're only biased towards the best candidates
EDIT: Just to mention, the interview panel is quite diverse, from scientists, doctors, researchers and other FMHS staff. I dont imagine that they're the same people every year although some do stick around. In essence, you're dealing with people here and they just may in fact be no-so-accepting of everyone, but so far it seems highly unlikely to have been the case