It's not that I'm against this in principle, I'm very enthusiastic to add more Sites outside the USA, but this just reflects the fact that most of our users are American and so set the majority of their writings inside the USA. It's not that there aren't sites outside the USA, they're just not consistently used in 5 articles, and I need to set some sort of minimum bar so that this doesn't get unmanageably long and impossible to keep up to date.
I suppose in theory I could add INT sites with enough translations, but I think even then there wouldn't be many more that get added to the page, very few INT sites even have 5 translations on INT, or even 5 articles on their own branch, the communities are just a lot smaller.
Also, some other branches may dislike the idea of us claiming their sites to add to our list - generally there's a separate list for EN sites and then another list for their own branch, if we start including INT sites in the EN list it's going to get very confusing.
If we're talking about just adding them to the map, that is a project I might be interested in doing, but I see it as something longer term if I can get this to work on EN first.