The details about the Alberta program seemed a little vague according to a different Reuters piece I read.

It sounded like if you have a negative test, followed by another negative test a week later, then you were good. But you still had to quarantine for 48 hours upon arrival. Better than 14 days for sure.

I guess more details will be forthcoming but it could potentially reduce a hurdle for some potential travelers, which could be good for AC and its share price.