Yes, well, someone would explain the supply-demand-what-the-market-will-bear kind of thing to comment on pricing.

PE to YYZ-TPE, BR is consistently less expensive than AC and it's direct. For YVR-Asia routes it might be more interesting to compare, as AC is up against a very long list of airlines for direct and one-stop routes.

Anyway, if AC wants to charge for seats on Basic and Standard fares on some Asian routes, either it will cost them some business or it won't. Coin toss.