Ok, that helps. Unless I am misunderstanding something, it sounds like a feature that won't be of use to me since I already have free premium connectivity. Yes, no?
But let's say I don't have premium connectivity. I would have to pay my cellular provider an extra $10 a month to use my phone as a hotspot, so sounds like a wash to me. What am I missing here?
I no longer have free premium connectivity so I need something if I want to listen to Spotify. In my case I have free cell and free hotspot through work, fully unlimited. Using it makes more sense for me to save the $10, especially if I don't need the other features.
Regarding paying $10 to cell company or $10 to Tesla. Again for me if I had to pay one it would be the cell company since I use the hotspot on my phone to connect my iPad and Laptop when traveling for work or personal use. Using the hotspot lets me use it in the car or anywhere else I want. I also let other people use my hotspot when I'm at a business meeting with someone and there is no WiFi, they can use mine.
I don't think many Tesla owners care if they spent $10 for just hotspot, or $20 for hotspot for non car use on phone and Tesla LTE. Besides you miss out on some of the Tesla features only using HotSpot.