I would be very surprised if this was only JLR, I have an old car and not affected by any of this nonesense but have seen Peugeots that will automatically install and app on your phone when you connect to to teh car and that also records all your journeys and stuff.
One thing to bear in mind is when you last bought a second hand car did you get all the keys? I know of one casde where premium cars were sold and stolen back cloned and sold again several times using this method.
Personally the whole car connected thing comes under "just because you can, doesn't mean you should".