It appears that the Caribbean airliner was on the wrong frequency, and maybe never received the hold short .......but who crosses a busy active parallel ry without clearance to do so?...
There isn't stop bar lights as far as I remember but I believe it has Ry guard lights( Amber flashing).
As previously mentioned this wasn't a "lahso" but rather exit 22L, taxi 100 meters on hi speed turnoff followed by another right turn ...taxi 200 Meters before crossing a well marked runway perpendicular to taxiway