User blog comment:StickFigure01/Heroes and other supporting characters that should've made an appearance in Arrowverse and Supergirlverse/@comment-27700324-20180104192651/@comment-27700324-20180105154313

1st Having two versions of two already complex characters would be annoying. This is why the DC universe usually only has one version of those two in one canon.

2nd We already have a heroic Red Tornado, he is on Earth-X. You can use the heroes from there now too.

3rd What is your worry with Supergirl turning heroes evil? They only did that one time and Red Tornado has sometimes been a spy for evil in some versions of canon anyway.