<R15>

So I’m pretty sure I’m overthinking this but is this rule suggesting that we’re not allowed to use sensors to detect light for auton?

Please correct me if I’m wrong or completely overthinking this.

I think this means that you can’t create sounds or light that the robot detects in order to do specific things in driver control.

They just want to make sure auton really is autonomous. You can’t use the remote, but without this rule a creative team might try and do something like use a flashlight/laser and a light sensor to send signals another way. Think this guy and his arrow.
https://vignette.wikia.nocookie.net/marveldatabase/images/4/47/Yondu_Udonta_(Earth-199999)_with_Yaka_Arrow_from_Guardians_of_the_Galaxy_(film)_001.jpg/revision/latest?cb=20170506204440