I'm honestly concerned by the amount of comments in this short comment section that suggests many of you do not actually know what Canada Post is. The reason they value profit imperatives is that, as a crown corporation, Canada Post is a neoliberal response to the success and increasing costs of public services in the mid- to late-twentieth century. Even though it is state owned and operated, it is fundamentally founded on the notion that business-based decision making is a more "efficient" and therefore less costly way to organize a system. This is wrong, obviously, but the consequence of that is we are forced to protect Canada Post as it does actually exist as the only publicly-owned postal service in Canada and is therefore crucial to protecting vulnerable communities from exploitatively expensive access to a basic need like the mail is. They talk about cost-saving measures as they ultimately view this as a revenue stream that has effectively appropriated what ought to be a public service in the way that healthcare and education is (I'm sure you can all relate this to the trajectory that those public services have also taken in the past fifty years).
Basic sources that you should read if you're uninformed on this:
https://thecanadianencyclopedia.ca/en/article/crown-corporation
https://thecanadianencyclopedia.ca/en/article/canada-post-corporation
https://en.wikipedia.org/wiki/Canada_Post
https://en.wikipedia.org/wiki/Purolator_Inc. (Purolator is also known to have worse labour conditions than Canada Post, and handles much of their package delivery traffic)
https://en.wikipedia.org/wiki/Starve_the_beast (not directly related to Canada Post, but rather the overall privatization of public services and works)
Klein, Naomi. The Shock Doctrine: The Rise of Disaster Capitalism (2007).
Jones, Gareth Stedman. The Political Theory of Neoliberalism. (2013).