I think the article mentioned the "requirement" to make it uninstallable. Also, some data collections are technically possible; what they label as "facts" are just promises that governments with no solid checks and balances can break at any time. Look at the "norms" in some countries, and you can see that they can be broken when the conditions are right; even laws written in the "highest" law of the land don't seem sufficient to check government powers.
It's good to be wary of our own governments, regardless of the sweet whispers they offer.