That's a very specific route. And a route you specifically fly a lot. My observations are considerably less egocentric.

This just posted today. In the $1,80. AF: YUL-CDG from CAD 1811 (sold as DL codes).

I checked and found NCE, CPH and others in the $2,200CAD range at various dates throughout the summer of AF/KL. Last year AC matched That's basically the price of PY and during peak summer travel.

I do not believe that YYZ-SFO represents an important data point for the size of wide-body J cabins. If it was, AC would run 787s and 777s on that route instead of Max & C-Series. Like they are running to FLL/CUN this winter.