As a statistics major, I would point out that the Law of Large numbers is poorly interpreted. Large sample size will give more accurate information about the population average. It would not violate the whole population’s privacy by doing so (no singular person is tracked). We don’t want Fedora to start catering to just your feedback and needs, but the needs of the population. So large sample size is a positive.
Also you didn’t back your claim that privacy and telemetry can not go hand in hand. That is blatantly false. See Prio | Stanford Applied Crypto Group for example. It is absolutely possible to discard all identifiable data, e.g. MAC address etc. Useful data will be aggregated.
As for your own privacy needs, the only possible issue is the data being collected in disk before the telemetry toggle is shown. You would be able to turn it off, as you do with Android. No worries there.
And that is okay, the improvements would be liked by the majority (because of collected metrics), and that is what matters. If someone preferred how Fedora 25 was and nothing else, we don’t expect Fedora to revert all the updates since for a single user. Tough luck for them. Change is a good thing over time.
PS: the post may come off as targeted, it’s because I feel the targeted post is self-centred. Apologies. I am not affiliated with Fedora or Red Hat or IBM.