Re the Maori party win, is it not the case that the Bay of Plenty/Gisborne is the part of the country that actually has the largest concentration of Maori in the country? And coincidence that it is more or less Winston's old stamping ground?
Per wiki article on the Bay of Plenty:
In the 2018 census, ethnicities were 73.6% European/Pākehā, 29.1% Māori, 3.5% Pacific peoples, 7.2% Asian, and 1.8% other ethnicities. People may identify with more than one ethnicity.
So yeah it seems to be quite high in that metric. The Maori % here is close to double that of NZ as a whole.