You can see it as a testbed.

Now it's those machines only, and opt-out.

Eventually more and more machines will come with the necessary chips.

And it will be more of an effort to opt out. Then only professional versions will be able to opt out, through more and more complicated pathways. Eventually it'll just be part of the OS.

Meanwhile they'll find ways to sell the side effects of the functionality to other organisations, for example to monitor employees etc, to begin with. Then to governments, why not.