@oyama
I get what you're saying, but you're comparing the wrong stuff.
There's a difference between the criminal-organization moving about in the narrative while the MC is away, or the kids waltzing around at martial-school, or even their teachers submerging the narrative in political intrigue -- and comparing that with the MC trying to do something -- and then being completely put to pause by what is literally a random-encounter.
Everything else you mentioned takes place in the background, concurrently. The narrative splits off between characters.
This, however, takes the MC's plot -- chains a weight to it, and puts everything to a grinding halt. You can't compare multiple viewpoints to "the mc did something and then someone stopped him so he can watch a fight for 4 episodes".
I'm surprised you're enjoying this.