I'm not sure what the radio host is thinking about and can't help but think something is getting lost in translation. I would plant the tree as is but would definitely look closely for any roots encircling the container and either unwind or cut them. You can take a utility knife and make 4 vertical slices down through the outside of the root ball. The roots will then branch and grow from the cut points and thus reduce girdling problems down the line.
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