Personally I’d call that a safety issue. A few years ago my wife and I were driving a rental car that was rear ended on the highway by a drunk driver. The impact caved in the left rear wheel and spun us 360 degrees across 3 lanes of the highway. Within a few seconds of coming to a stop an OnStar person was talking to us, asking if we were ok and confirming our location.
We had no clue ahead of time that the rental car had one of these services, but at that moment we were very happy it did. I honestly have no idea about the privacy ramifications, etc. but having been through that experience I’d think long and hard about disabling it outright. I do take my privacy seriously, but I’d have to weigh that against the safety of me & my family in that kind of situation and disable it only as an absolutely last resort… Just my own personal $0.02 on the matter.
Once the infrastructure (conduit, circuit breakers, cable, etc.) is in place then swapping out the charger at the end of it is pretty much trivial.