Bunch of FUD. OS features and permissions aren't going anywhere. Even if coercing users into providing permissions became a real problem, Apple could have the OS provide fake data to apps not whitelisted by the user.
If you don't want to be tracked, don't use Google, Facebook, and other ad techs. Doesn't matter whether you installed their apps or not. Even today Apple can't meaningfully shield you from their tracking if you choose to use their free ad-supported services. (And if you don't, there's not much value in tracking you since they can't sell your attention to the highest bidder)
I'm not defending ad tech, but it will take complex legislation to reign it in. You can't just hide from it in Apple's walled garden, it does not work.
