It is a straightforward response to a ridiculous request on user privacy: you can’t force me to use my personal phone how you’d like unless you provide it. You can force me to buy into an app that tracks the location of my device in order to enter buildings and such, but you can’t control which device I choose to use, nor force me to carry it in my personal life. The flaw in the underlying assertion (one-to-one phone/person relationship, location of a phone = location of a person) is not my problem.