@Kaitsz
I think it's the Story Motives, Author Motivation, Arc Durations, Release Dates and Plot Consistency, this seems like the summer arc all over again, and we've
completely forgotten the dynamic between the villainess (Eliza) and the conscious mob (Kururi) which are supposed to be the main point of the story, making this entire scenario feel like a filler, and that feeling has been going on for about 2 arcs now, which are approximately 10-15 chapters since..
(which has been more than a complete year! A complete year of unprogressive, dragged-out side quest!)
It's major setback is the inconsistent chapter release/translation (triannually, quarterly, bomb release), with each chapter not providing anything more interesting than the other.