My GF is flying YOW-YYZ-LAX and got stuck in something AC called a "planned delay" and missed the YYZ-LAX connection. They sat in the plane for 2 hours before taking off, then got stuck in a holding pattern before landing, then were prevented from deplaning due to another flight deplaning. They're denying her hotel because they said it's a "planned delay program". They didn't say anything about delays before departing YOW.

Are there any Canadian rules she can appeal to to at least get them to provide a hotel? It sounds like it was within the control of AC. Ideal would be to get them to put her on another airline and get to LAX with another connection if necessary, if there's any rules she can appeal to to force that.