Board Thread:Supergirl discussions/@comment-27700324-20181022044819/@comment-26618197-20181022112421

Because this isn't a Marvel show where the civillians turn on the heroes at the drop of the hat. If it looks like Kara went evil they'll react with hostility until they see the second Kara then they'll be like, "Oh this is a combination of those two incidents from about three years ago."