@Eeliejun a fair point indeed. Though my thought process was that since at the time they made up for quality by quantity , by firing in volleys, charging was the safer option since both sides had already started exchanging fire. By lowering morale by picking off one or two soldiers then charging in while they are reloading their muskets, a small chance to capitalize on their disarray is possible. Of course this is all in the hypothetical and I'm by no measure a historian. What i can say with confidence is that having spent a bit participating in paintball and airsoft skirmishes, flanking and forcing the situation into cqb can cause quite a mess when the other party isn't expecting it and with a good bit of luck one can disengage before the others overwhelm you.
As for the narrative dissonance, I'm not too sure i'd agree. In a prior arc with a skirmish event, in the chapter 30s when Amira's clan is trying to kidnap her / pillage the town, her brother single handedly does the following:
-snipes a backstabbing party's leader with a single arrow
-escapes a plethora of musket fire
-indirectly destroys an artillery team with an explosion
-trumps several pursuing mounted swordsmen with his own sword
-fends off another squad of swordsmen this time while
on foot.
As if that wasn't enough he then triumphs over some attacking horsemen armed with muskets while armed with but bow and manages to drive them off with some help from his friend and his sister . All told, he was responsible for dozens of deaths during a few chapters . Leaving him aside, to my eyes it seems we are encountering mainly characters that present themselves larger than life throughout the various arcs, be it the twin twins, the granny, Amira, bread girl, the palace arc ladies, and so on . one of the few low key characters would be this englishman that we're following