[SmG Phoenix]

My view is that there are too many claiming to be 'The Flash' who are descendants of the original so.....
With the last statement you're implying that there is a Justice League.
However, without Batman, no Justice League, hence no projects against them. Therefore, Amanda not necessary. Boom.
Wonder Woman, ehh.... Different, sure. She was a key member of the team, but I'm not sure if she soloed anything major. Can't remember.