Until Apple promised it so explicitly, I'd have said you might be right. True, Google and Facebook make zillions off of monitoring people for advertisers. That will make it harder for them to follow suit, there will be far more weasel words and such when they try.
I think those of us that are willing to pay the premium for something that promises more have higher expectations. If they are lying, I believe we'll know within the next year or two and we'll get to find out if you're right.