i have the same version too (dubbed in Hmong Yunnanese). lol
at 1.43, it stated that Qu Yuan is thought to be Miao.
i have to say, a Qos Xyoob brother from Hunan did told me that Qu Yuan is Miao.
i think the most interesting quote was from Qu Yuan himself
In Qu Yuan's Chu Ci (The Poetry of Chu), there was a poem entitled Yuan You (Wander Afar), saying, "Therefore I preferred to live in ever-bright places as people with wings, which are the hometowns of immortals." Besides, Shan Hai Jing (Book of Mountains and Seas) has records of "winged people's kingdom", calling them "people of immortality".