I don’t see a retraction.
She’s saying that just because it jives with one person’s testimony, doesn’t mean it won’t fit with another person’s testimony as well.
She is saying that there are multiple possibilities here as to what happened, something which the Post-Dispatch apparently did not fathom.
When the Post-Dispatch article originally stated that her analysis lined up with Darren Wilson’s account that was botched reporting on their part.