Hp, I do get what you're saying, one thing though, it was not just one episode for Deb, they spent the WHOLE season with her searching. Leaving Quinn, talking to the therapist, working thru it, and in the end she reaches her destination. That's how one makes a discovery. You want her to figure it out, then sit on it for a few episodes?
And no, I don't think their first thought would be Travis may go back to the church where more cops might be going thru there. That isn't far fetched at all. Did they take some liberties? Yes, absolutely. But to me, they don't overshadow the bigger picture.