Evidence from the MSDN article and elsewhere is that "telemetry" is just the old Windows Error Reporting that's been there since XP.
I have tweeked Windows 7 Professional into a likely server by some programable tweeking (certain user autolog on turn-on/no questions on restart/ no send message on IOPs of a process (telemetry keeps process still running allocated untill decision)/ no update) All the app did was reigistry editing. And data vulnearability is very concerned in a widespread OS too(viruses, though MS gives no warranty on data and damage, they must compete on this). It is true that MS can turn all computers unfunctional, which does update, but I gess they are spectated by some authorities to have this not happen just like that. (and surely thay can invalidate your OS till physical acquirement of data happens).