I guess the question is if the yellow signal at the monitored intersections was shortened when the cameras were installed in the first place. The reason to do that would be to increase revenues by setting up a trap
If adding an extra second reduces violations, reduces accidents, and reduces tickets, these are all good things. The fact that this is viewed as a problem shows how the purpose of traffic citations has become completely perverted.
This is, in fact, the case in every installation. Signal programming is often turned over to the contract camera provider so the local officials can have plausible deniability.