No real dog in this fight (I cycle, motorbike and drive), but I remember on the news a few years back in London as a cyclist you’re statistically safer to ignore red lights and make your own mind up.
Probably something to do with all the cyclists not understanding HGVs and becoming statistics themselves when a HGV is at the front of a red light and turns left on green.
One example-type only however and nothing to do with group cycling or the majority of examples given in this thread.