Why do they pronounce it "The Hoerukee Golf"?

[Lilith7]

And then there are the regional and tribal differences. Just as there are in any language.

Indeed there are; third eldest granddaughter  married  a Ngapuhi bloke & they've  been learning the language & when they went up north last year she said they both found those  regional differences a bit difficult. 
And while I only know a few words (mainly picked up when I was a kid) I think my pronunciation is likely to be Ngai Tahu from the local Iwi. That, or I managed to get it wrong, which isn't  unlikely.