Board Thread:Episode Discussion/@comment-34633327-20171123054740/@comment-26397825-20171129002415

I think they went with Autumn so people wouldn't be like "Fall's condition? Is Cinder being mind controlled?! ShockHorrorLeGasp!"

The lack of an actual name at the time of writing it could have been a thing too. I know that the FNDM likes to make Amber's last name Autumn so it makes sense, since RT didn't give her a last name.