Seems they have decided to do some added world building here. Instead of basically blank slate characters they are trying hard to expand on the other S Ranks better. I can understand and appreciate why they are doing it but having whole chapters of gabbering is gonna grind the story to a screech.
Especially when they haven't even teased the upcoming bout
A few chapters of this stuff should be fine but if it goes on for anymore it will ruin the build up and payoff for the raid.
This arc is pretty dialgue heavy until the end as is without all the added stuff.