That snapshot was of the Tesla owned fleet aka loaners. But regardless YES loaner or not they gather data about your car 24/7 through the car. Just like how FANG and like umm every company gathers data about you. Not sure if tesla sells your data or not but it is collected for a better tesla experience: planning infrastucture, programming, hardware, autopilot, errors, etc. You call support and say I had this issue/experience and they say okay let me pull up your log and find the exact time it occurred and they try to fix it remotely (you can reboot or they push you a new firmware in a day or two) or they send it in for further diagnostic. Pretty spooky times.