I read the article before watching the video, and for me it was like, she's on the screen for like TWO SECONDS, if she didn't have Japanese subtitles, she probably wouldn't have registered as Japanese for a lot of viewers, or stood out to anyone at all. So...yes OP, we do need the HEY DID YOU NOTICE I'M ASIAN subtitles, because they give dimension to a character who would otherwise fade into the background as a random diner patron.