That’s absolute bs… if there is a main light and associated filter light, when the main light shows, vehicles can proceed as long as it is safe to do so.
The filter light is an explicit indication that the filter route has right of way by means of a red for all other routes that also feed in.
The cyclist did nothing wrong… damn ‘copper light’ (pcsos have no power anyway) needs to go back to highway school on that one
I recommend watching Stargate, there are deffo some similarities hahaha