title_body: In what ways are well-known a priori conlangs inadvertently eurocentric?
upvoted_answer: While it's true that languages like Na'vi and Klingon (can't speak for Dothraki) do contain quite a few explicitly non-SAE (Standard Average European) features, it's worth noting that both Paul Frommer and Marc Okrand have stated that they were deliberately using less common and lesser-known features in their respective conlangs to make them sound more alien. Since avoiding features that would be considered common or familiar to their audiences (typically comprised of speakers of English and other SAE languages) was a goal during their language creation. I'd argue that deliberately avoiding all SAE features to make your language sound "strange" and "alien" is a sort of eurocentrism (though perhaps a less obvious sort than unthinkingly including all SAE features) in that your language ends up very influenced by European languages and their features.