I really liked this episode. That being said, I feel a little cheated. Basically, they tease an ending creating the show I wanted to hook me for next season after giving me something different this season. That being said, it's somewhat mitigated for a few reasons.
One, the cast is great. I enjoy every character. If it wasn't for them, this would be a much weaker show.
Second, I actually expected it to end this way, so it softens the blow. I thought for a little while they would end with them running away. On the other hand, it felt a bit sudden.
We sort of have the dynamic of the comics with a more clearly established threat and stronger interpersonal dynamics. The parent dynamic is very different. Someone sent Jonah a message after Karolina escaped, right? I can't quite remember that. I think the biggest problem with pacing is there are some nice clues being dropped, but I'm not watching every episode again to see if I missed them. But the idea of there being a betrayer among the parents is interesting.