I watched the video. Doesn't seem derogatory to me. Except for Hanabusa's obvious disdainful tone toward her counterparts. Perhaps she is offended by the improper greeting because it was still morning?Damned if you do. Damned if you don't.
Give me a break!
If you make any reference, even in a possibly misguided attempt at "politeness" or "courtesy", to any "identity politics" frame of reference you are a racist, homophobe, etc.
If you do not recognize the specialness of and indebtedness to the "identity politics" group, you are a racist, homophobe, etc.