Yeah, that’ll work real good. After a couple of times of some fat little old meter maid getting blown away after stopping a red light runner who happens to be driving a stolen car or has warrants, it won’t seem like such a good idea.
The people in Berkeley know what they want, and deserve to get it good and hard.
The idea could be to remove the ability of the person handing out traffic violations to enforce any other laws. That would make traffic stops, when they actually happened, safer. If the person handing out traffic violations could not bring any other charge but the traffic violation then somebody with warrants in a stolen car could just get the ticket, say thanks, I'll mail it to the actual owner, and drive away.
Notice that there is no need for the person handing out traffic violations to ask for ID, or registration, since just like a parking ticket they aren't relevant to the traffic violation, if traffic violations become like parking violations which are already often handled by a department other than the police.