This was apparently specifically bred for our MN climate

Seed was collected in Hokkaido, resulting plants were dispersed to multiple US locations. 'Hokkaido Normandale' is based on a seedling that ended up in Minnesota, showed that it could do well there. Its general features and basic history are described here:

https://shop.baileynurseries.com/Product/Detail/4475?availabilityDate=2020-05-17&returnUrl=%2FProduct%2FInventory%3Ffilter%3Dprunus%26category%3D15-SHADE%26page%3D1%26displayFilters%3DFalse%26brand%3D%26height%3D%26heightUnit%3DInches%26zone%3D%26exposure%3D%26pageSize%3D20

cherry trees have far-reaching shallow root systems

What you are talking about is sweet cherry (Prunus avium) roots when this has been used as a rootstock for Japanese cherries. When Japanese cherries have been instead grown from cuttings or grafted onto a different, less vigorous rootstock then the behavior of sweet cherry roots is not encountered. So the thing to do is look for stock that has been identified as having been propagated by some other means than grafting it onto sweet cherry.

Thanks for the clarification on the origin @Embothrium. I sort of misunderstood this story: https://minnesotabonsaisociety.org/2012/12/06/a-trees-story-normandale-japanese-garden/. That said, if this is NOT a Prunus Avium variety, should I not be concerned about the roots then?

What I was talking about is Japanese cherry scions being grafted onto sweet cherry rootstocks. Wherein the roots and maybe the trunk of the resulting combination are sweet cherry, and the branches are the Japanese cherry. When that has been done is when the suckering and surface rooting of sweet cherry becomes problematic - in situations involving lawns or paving particularly. Because the bottom 1/3-1/2 of the grafted combination is sweet cherry.