Is there a condition not listed as a recognised condition in the Diagnostic and Statistical Manual of Mental Disorders for seeing racist dog whistles everywhere? Wokeness comes to mind.
The very Wikipedia article we happen to be discussing contains "...Renoux indicates that Japanese media, magazines in particular, often depict Paris as a place where most people on the street look like "stick-thin" models and most women dress in high fashion brands such as Louis Vuitton...".
Are you familiar with the concept of confirmation bias? Look hard enough for something and you'll see it ... whether it's there or not.
Having been to Paris myself, all of these are true.
It could be referring to race, but the fact that you "can't imagine" what else it could refer to says a lot about you and nothing at all about the original poster.
Therefore, there is some sort of signal that we're picking up on. That signal, almost by definition, is the aforementioned dogwhistle.
It isn't quite the right tone to not be somewhat obvious. Since it is intentional, it doesn't matter "how bad" it was: It's the conscious attempt to insult/denigrate/hurt that itself becomes the problem.