The recommended update will still require the user to accept or decline before installing
Even when it is a recommended update you still get the chance to accept or decline it before it installs and if you do accept it then you can still roll back.
"Early next year, we expect to be re-categorizing Windows 10 as a “Recommended Update”. Depending upon your Windows Update settings, this may cause the upgrade process to automatically initiate on your device. Before the upgrade changes the OS of your device, you will be clearly prompted to choose whether or not to continue. And of course, if you choose to upgrade (our recommendation!), then you will have 31 days to roll back to your previous Windows version if you don’t love it."
You can also be sure that the approach for enterprises is different. I have never seen a single prompt for Win10 upgrade on my large corporation managed Windows 7 Dell PC.
How do the people who are concerned with the Windows 10 telemetry manage to exist on the internet? Are they using chrome? Google search? gmail? Facebook? iCloud and iMessage? Siri? Do they read the EULAs? Do they trust those other companies more than MS?
EULA for icloud and therefore iMessage (which means all text messages you sent to other iPhone users if you didn't turn off the default setting)...
"Apple reserves the right to take steps Apple believes are reasonably necessary or appropriate to enforce and/or verify compliance with any part of this Agreement. You acknowledge and agree that Apple may, without liability to you, access, use, preserve and/or disclose your Account information and Content to law enforcement authorities, government officials, and/or a third party, as Apple believes is reasonably necessary or appropriate, if legally required to do so or if Apple has a good faith belief that such access, use, disclosure, or preservation is reasonably necessary to: (a) comply with legal process or request; (b) enforce this Agreement, including investigation of any potential violation thereof; (c) detect, prevent or otherwise address security, fraud or technical issues; or (d) protect the rights, property or safety of Apple, its users, a third party, or the public as required or permitted by law."