There is no direct legal connection between the internet service and the right they want you to give up. Microsoft made a statement of fact and a separate statement of what you agree to. They did not connect them. Any connection you think is there is in your brain and won't stand up in court.

They have internet services.

You have a product installed that you agree they can inspect and modify at will.

Your agreement is in no way contingent on your use of the internet services. The existence of those services may as well be the price of tea in China as far as what you agreed is concerned. Should Microsoft have a huge security patch to push out, that agreement would allow them to shove it down to you. Should Microsoft have a patch which causes a competitor's service to break, the only need they have to make up a reason for you to be upgraded automatically is publicity - you already accepted that they have the right to do that.

Now they may not be using this agreement in any other way right now. But they have made repeated noises about the need to be able to force upgrades out at will. This has long been known as their long-term strategy. They want to be able to do this for the FUD value - being able to harm competitors at will is a nice feeling. But they are setting themselves up on all sides to be able to claim to be pushed into it for security reasons.

And you, like a naive lamb, were willing to accept their comforting noises and docily lined up for the slaughter...

Cheers,
Ben