Yep.

I don't know if TPM has ever gotten over 5%; but their electorate seats always put them in parliament.

Maori voters are often considered "strategic" voters; which just means different party/candidate votes; as a bloc. So it just seems that they are "formalizing" the existing common practice their voters are known for.

Opportunity is doing the opposite; asking only for party vote (except in Mt Albert, for Quilae) as they recognise that their voters are spread fairly evenly across the country; but no one area has enough concentration to win a seat.