This is something that needs to be solved by rider education or training, not something you can rely on traffic lights to prevent. After all, the same risks and the same need for observation apply at every junction that's not light-controlled ("give way" signs, roundabouts, etc), every lane change, and when pulling out on to the road at the start of every journey - for that matter, even at light-controlled junctions when you want to turn right across oncoming traffic which also has a green. If you can't negotiate an uncontrolled T-junction safely, obeying traffic light signals is not going to be sufficient to keep you safe on the road because not every junction has lights.The problem I have with group 2 is them deciding what's safe and what isn't. Just because they don't notice anyone around doesn't mean there isn't.
(Please note that this is not an argument for RLJ, it is an objection to a specific argument against. There are other reasons not to jump red lights, I just don't think this is a particularly good one)