The article lists settings to change on Android 14 and iOS 17.
According to the author:
Recommended setting changes reduce the amount of data submitted to device manufacturers, cell carriers, or app developers and improve device security against common threats, such as those posed by nosy people who find the device unattended or by common malware.
By enabling all of these settings, you are significantly reducing the amount of tracking and data collection these devices perform, but keep in mind that you are not completely eliminating it.
You make a valid point. As I’m not the writer of the article, perhaps it would be apt to convey your feedback to the writer.