I liked this issue, and I was surprised because I quite disliked issue 3 for its plot holes. Issue 4 was tighter and I found it to be quite gripping. But man do I ever hate Lucas. Something terrible has to happen to him or the power dynamics need to shift in a big way or I'll end up dropping the book. I wouldn't want to read arc after arc of a psychotic teenager picking off his trusted followers.
I really have a hard time with the premise itself. While it's true that this comic book has taken a path that has never been trod, maybe some paths are not to be taken at all. I totally agree with you about Lucas, and honestly, I can't continue to find out.