Lesson learned: read the footnotes in press releases.
That's where an eagle-eyed Canadian spotted the mention of "Apple-designed accessories for iPhone XR including a clear case will be available starting at $55 (CAD)" fine print that appeared in the announcements for selected regions.
Highlighted in a tweet posted early Friday, @ivanincanada pointed out the information, which no one noticed (or at least shared) in the month since the press release came out.
A response highlighted that it appears in the French and German press releases as well.
It didn't appear in the US version, however.
The $55 Canadian price is equivalent to about $40, £32 and AU$60.