So your mobile operator does this too
Hang on a doggone minute.
I purchase mobile service from an SP. They know which tower I'm connected to all the time. They log that info. No-one particularly screams about that because, well, they'd have some difficulty routing calls to/from you without that info.
I purchase a mobile phone with an OS on it. The provider of the OS collects same info. Sure, it's not necessary to do so to route messages, but I do believe their claim that it would assist with network optimisation.
Why accept the former and go ape-shit over the latter ? Let alone the fact that the latter is only possible with some degree of co-operation by the mobile SP.
Biting the hand that feeds IT
