ComJam...
You obviously cannot read
Try reading my post above, and apply the very basic, first, principle of aircraft incidents / accidents. They are rarely solely down to
one cause...
In this case a controller error was the major contributory cause to
an incident. Various other factors (lights? taxi speed? poor lookout?) made the incident somewhat closer to an accident than maybe needed to be the case. Fortunately, another "layer" - good listening out on the part of the Airbus skipper - prevented the accident, or a more serious incident. However, had the Airbus skipper missed that call (and he had just missed another one due to cockpit calls), then it could have been very close.
So we come onto the "other" layers. If the Airbus lights were off here, then putting them on might have caused the Ryanair skipper to see it. If the Ryanair guy had taxied more slowly, and been able to pay more attention to crossing, he again stood a better chance of seeing the Airbus.
An accident is when all the layers fail. Since you wish to strip away all the layers, and ignore their effects / the lessons we can all learn, you are a flight safety hazard. Whether that is a problem depends on whether you fly anything more complex than MS Flt Sim...
I presume when you come across a green light you speed through and don't look to see if anyone is coming across?