I'm trying to make it through season 2 of this. I think I'm on episode 3 at the moment.
The first season was very 1 sided I thought, this seems to be continuing in that manner but maybe a bit more open.
Kratz didn't build a solid case in the original trial, it looks like he had some evidence and tried to make it stick.
I think that Zellner is so far looking at trying to discredit Kratz' evidence such as the blood splatter in the door of the jeep......but it's fundamentally saying the way you described the murder is wrong, but she is still saying there was a murder and not clearing Brendan or Avery.
There's an interesting theory unfolding about how the Rav 4 was brought to the place it was found, but again that doesn't say anything about who brought it there, just how it got there.
I'll need to watch the rest, but at the end of the day, both are still locked up.