Following branding color vs. following established standards

Air Canada picked Red color for the primary buttons.
Red is obviously the main Air Canada color but is it appropriate for the primary buttons?
It threw me off right away; oh Cancel? oh it's Continue? Interesting...
Going with establish rules is more intuitive (Red - don't go, don't do, be careful). Branding is important but in this case the color is the wrong choice especially having so many other color to chose from.