As a Utahn, the most disappointing thing about this article is the racial homogeny. It's true - nearly everyone is white. But that doesn't mean that there isn't some diversity. When my father was a Mormon bishop, he would dole out orders for the Bishop's Storehouse to everyone just the same, whether they were white, black, Latino, or Asian - Made no difference to him. They got the same food, but also had to live by the same requirements - coming to church and serving in the community.
I recall one day after my dad was diagnosed with cancer. Out of the blue one of those families my dad had prepared an order for brought over a casserole for our family out of gratitude for what he did - not only for the food, but for helping him get back in their feet. And this was one of the latinix families.
My point is that I wish there were data on what this experiment would be like with the racial diversity of NYC, DC, or elsewhere. While there are Mormon congregations in these places, with the same bishops storehouses, they aren't nearly as pervasive in their communities as In Utah, so it's hard to see the effects of their efforts.