This falls squarely in the lap of PA and their deceitful marketing. Honestly no patron cares if she is canadian, they'd rather know ethnicity because thats where the decision is made. If you don't like to see black girls (for whatever reason) and they say Canadian and show you a brown girl, well that is useless.
The brown girl could be Black, Indian, South American, Carribean all these have different looks that appeal to different people. So be upfront PA. Oddly PA chose to say YOKO is Oriental and not Canadian. River is European and not Canadian (River is Canadian AF), many others...the categorization is highly inconsistent.
FTR in general I'd be more likely to see a Brazilian black girl than most other black girls, but there are many other factors that come into play - weight, attitude, rep, vibe. So if you just label the MPA Canadian and I now have to go to terb to get info that could simply be there, then I'm not even going to bother booking and go to the next spa or review.