Kirins... Aside from their physical designs and inspiration. There's nothing "eastern" about them.
It's funny how they have an entire episode depicting Indian pony cuisine. But absolutely no depiction of Chinese pony foods whatsoever, not even in Mistmane's backstory.
I don't even think Mistmane's village was even the real far east in their world. Just a cultural offshoot similar to Chinatowns/Japantowns irl.