> I will say it is kind of strange that Premium Connectivity has no data limit. If I could just figure out how to launch a personal hotspot from my Model 3, I could cut the cord with Comcast...

I think you just highlighted why they will likely never allow a personal hotspot from the car.

How many people would gladly drop their home internet connection if they could just tether to the car which is only $10/month for unlimited data? It would cost Tesla a fortune unless they charged a hefty premium for hotspotting.