What if the patient doesn't have a smartphone (or don't know how to pair/operate Bluetooth), or too many active test kits are lingering in the patient waiting room making it impossible to navigate all the devices? I don't see how this particular SKU would be a good fit for a clinic. Easier and cheaper to just give the patient a passive test strip they can use in their own privacy.
The point is that the patient might have a previous one and show that one instead as negative...or lie about the result...niche scenarios, but is this not an niche use case anyway?