Earlier quoted context omitted.
You'd still expect manufacterers to put your language on packaging and for the government to communicate with you in it, I presume?
Yes, but without the requirement to have two languages on the packaging, you can have one design for both Canada and the USA. Canada is a tiny market by comparison, so it's often not worth the expense of designing separate multi-language packaging just for them.
If your only argument against doing business in a country because of the language requirements, you aren't a good businessman/woman. Because you are sacrificing a market share for something that can be easily done: translate once, print indefinitely.