What you are observing is the trick the industry used to get approval for changing LED billboards— they “donate” say fifteen hours per month to public service announcements. This kind of concession is gold to an ambitious public servant, the old prohibitions never stood a chance. The PSA could be “stop electronic billboards” but that was the way they got through high-friction public processes.

Good org on the other side of the issue: Scenic America: https://www.scenic.org/why-scenic-conservation/billboards-an...