Just because people are not being vocal does not mean they do not care about the situation. I haven't commented on the drama from this situation but I also got the email from them and my immediate reaction was "huh, thats kinda shitty." and proceeded to hide my profiles. A lot of people feel that only people who are displeased voice their opinion and people who are satisfied stay quiet but I would be wary about that line of thought. While the angriest voices are the loudest there are definitely a good number of people who aren't happy but don't feel the need to jump into every argument

> Are people worried about the actual contents of these kinds of telemetry, or rather just annoyed by the fact that it's there at all?

Both, I imagine. Worried about the contents because the trend of companies pulling in as much data as they can tends to not end well for consumers, and annoyed as it's an invasion of privacy that there is tracking for the many things we do on our personal devices.