Is that mentioned somewhere? As far as I am aware red light cameras are often abused as money makers and cities have been known to reduce wait times in order to maximize profit over the safety of drivers. So the "experts" in question most likely wouldn't have been engineers, they would have been bean counters.
Remember, the original system was caused by "experts" in the area, whose authority far exceeded the person claiming the system incorrect.
Using authority as a measure would have lead to continued failure. It is always an error to use authority as proof.