Controversy
People dont want thier information to be stolen and sold my databases. Apple combats this controversy by using minmal amounts of sensors including Lidar and light sensors in which only detect the surrounding area to help with the AR technology.
Misinformed
Although it is rational to not want your information to be stolen, the resources needed in order to do this would be unprofitable. Taking all of this data would not only take a lot of battery, but also processing power, and storage in which apple does not have.