@Rhin
I don't mind if the author is going for that route, hell I enjoy some of the manga that goes like that (case being Sousou no Frieren and Kage no Jitsuryokusha). What ticks me is not that no no, it's how the author makes every kind of encounter to be so serious. Set the villain up to be some sort of a big deal with a high-stakes do-or-die fight when it's just... not.
Sousou Frieren finishes most of the fight in less than 3 chapters, from start to conclusion because the author knows that the fight is not the main focus; Frieren is literally the most OP mages in the world, there no point in further proving that. Instead, the author focuses on character growth and world-building. Kage no makes every fight a joke, because it's a comedy and the author knows it, so even when an arc drags on for five-chapter, it's still fine for us, and surprisingly in that arc, the world-building and character progression is still going.