You've not done enough research then. Cellebrite has been around for ages. When I worked at radioshack, we would use them to transfer data from old phones to new ones. They did not connect to the internet at the time.

These machines are still used for this purpose. I don't doubt they're also used for surveillance or tracking. But they're not only used for that.

You're speculating as to what the phone companies do with the machines, especially given that it would be incredibly illegal to do so and trivial to whistleblow and thus a huge risk to the companies to do this on a widespread basis. Please provide proof instead of contributing to hysteria.