We all have telemetry is our cars, yet nobody is making any fuss about it.
That is very much not true, on both counts.
There is a lot of nuance in this area.
Monitoring how well your own systems are working and how they're being used is one thing. It's obviously reasonable and necessary for a variety of practical reasons.
Monitoring how someone else's systems are being used, even if they happen to be running some of your software or incorporate some equipment you made, is something else. If you're no longer responsible for those systems and ownership has been handed over, including remote access or phone-home functionality means crossing some lines that maybe shouldn't be crossed, particularly not without the full knowledge and genuine consent of the person whose system you are communicating with.
That is very much not true, on both counts.
There is a lot of nuance in this area.
Monitoring how well your own systems are working and how they're being used is one thing. It's obviously reasonable and necessary for a variety of practical reasons.
Monitoring how someone else's systems are being used, even if they happen to be running some of your software or incorporate some equipment you made, is something else. If you're no longer responsible for those systems and ownership has been handed over, including remote access or phone-home functionality means crossing some lines that maybe shouldn't be crossed, particularly not without the full knowledge and genuine consent of the person whose system you are communicating with.