I’m not sure if it’s intentional, but your comments on this seem to be trying to accuse WestJet of skimping on safety, or of them being cheap while AC was somehow wiser or more prudent.

To be perfectly clear, Air Canada neither chose nor bought more “safety” than WestJet did, or United, or countless other airlines.

The fact that AC chose two optional features related to MCAS and AOA - while WestJet chose one - was based on how both airlines wanted to configure their cockpits for their flight crews. Period. None of AC or WS or UA or Southwest or any other airline would have made those decisions based on what level of safety they wanted to attain, or how much they wanted to avoid crashing.

There was (quite rightfully) a base assumption from every single airline that the aircraft would be fully “safe” regardless of the feature set that they chose to buy from Boeing.

Yes, AC bought two optional features related to cockpit systems while WS bought one. That doesn’t in any way mean that AC has better “safety standards” as you imply.