Earlier quoted context omitted.
I'm sure there are at least a few camera placements that would be worthwhile. To answer your earlier question, not to split hairs, but I disagree with "always". You can inadvertently increase risk when trying to reduce it, or unwittingly prioritize things that offer less bang for your buck. That's why risk analysis is important.
I don't disagree that adding data can increase risk. I'm just not seeing the argument against exterior cameras.
I want to be clear I'm agreeing with you that some cameras would be useful in general. I think my only disagreements are that eyeballs are fine for this scenario, and that "more" isn't always meaningfully useful or necessarily better.