Lower Hutt has the population not upper Hutt. You can't expect the bulk of people to drive fourty five minutes to see a game. Longer on the train. It would double the length of time it takes for people on the Kapiti coast to take public transport.
And while the old Dunlop factory has a great craft beer scene there's nothing else to do in Upper Hutt.
As for the nothing to do here argument, Upper Hutt is gentrifying hard and more and more restaurants and pubs will come. Building a small stadium would fit with the councils plan to bring more people out here and that will help drive development.
Genuine question though - seeing as Petone Rec is a no go, where else would you have it? Fraser Park and Hutt Park have both been suggested. Hutt Park might be alright, although it's miles away from trains. Fraser Park has been suggested but is just in the middle of suburban housing with absolutely nothing to do anywhere nearby. It's also at the northern end of Lower Hutt so you're arguments about upper hutt apply just as much . Neither of those is an obviously better option than Upper Hutt. Porirua or Kapiti just flips the problem around. I don't think there's any viable locations closer to Wellington city
Nairnville Park is massive. Simla Crescent station 2 mins walk away.
I was a Khandallah resident. I'd agree. Thought they liked all things boutique.