Can’t be air canada and repressed trauma prevents me from acknowledging WestJet’s existence, so I’m going to guess the good one is Harbour Air. They run the cute little seaplanes you see around Vancouver and Victoria. I hear that boarding one when the system clock is set to 3am unlocks a special area where you can catch spirit bears.
Throwing untrained people out of a commercial airliner at high speed in the middle of a emergency is a good way to ensure no one survives. The equipment would add a significant amount of space, fuel and maintenance burden too, and require major compromises to the aircraft design itself. All to resolve a problem that effectively never happens.