The suggested system of using the timestamp on the electronic toll system to detect and ticket speeding would have no obvious way to determine who was actually driving. It would only log the transponder ID, which can be matched with the vehicle license plate, and thus with a registered owner.
In many ways this would be not unlike a parking ticket. There is no record of who parked a car illegally, so the owner is responsible by default.
The same applies to tickets generated by red-light cameras. The picture shows the license plate, but not the driver, so the ticket goes to the registered owner, even though someone else may have been driving. This also means that violation points cannot be assessed against anyone's driving record, because there is no proof of who is driving, unlike a ticket issued in person by an officer.
The article also points out issues with accuracy and reliability that would need to be addressed before a court would accept such a new system as sufficient evidence to base a fine on. The system was designed for toll collection, and may not have been designed to meet the standards n4eeded for court evidence.
Presumably, with such a system, if the owner knows who was driving on a given date and time, the owner could insist on being reimbursed by the actual driver, if it was someone else, and if the owner could show that the car had been stolen at the time of the ticket, no fine would be assessed against the owner.