This is so full of newspaper inaccuracies.
Yes the stop bars were in use and the red bar was illuminated.
The EGF exited at D4 and correctly readback the hold short instruction.
The ACA flight on 24R was rolling at the time.
EGF crossed the hold line/stopbar and tower prefixed the "stop,stop stop" transmission with it's callsign.
EGF stopped and asked "say again"
ACA was airborne just before EGF entered 24R and overflew him by at least 200 feet.
No avoiding action was requested of or performed by ACA.
Landings are on the outboard runway because crossing at the threshold, aircraft would pass in front of the ILS GP aerial on their way to the outboard runway.
The stagger in Toronto is very small at the 24 end and non-existant at the 06 end. Manchester's stagger is a mile. I have worked at both airports.