>>Oliver felt this would cause advertisers to "(pull back) on spending on iOS apps, which in turn drove traffic to other iOS apps, and shifted to other platforms like Google's Android, where they could measure the impact of their ads more accurately."<<
If Apple was to record all App Store data and everything else to the individual name, yep they are certainly going to be more "accurate" and likely make more than 10 billion, or substantially several times over, a year. Fortunately they don't but if they did then Apple has massively changed for the worse.