@Faryshta
my point was that rpg mechanics are a translation of abilities from real life or fantasy stories to game mechanics. When you write a story with game mechanics, your reversing that translation, taking those game mechanics and returning them to their original meaning in a fantasy story. The problem is that the writer focused on it being game-like while forgetting what the games were getting at in the first place.
If it were an issue of stamina, then in an isekai setting that would mean doing it would strain him enough to exhaust him right away, but that is ENTIRELY BESIDES THE POINT. It's not that type of skill, it's a swordsmanship skill, one that is suppose to make him better with a sword. The author completely missed what it means to be better with a sword in a real life or fantasy context, which is what an isekai with game mechanics is suppose to be translating those mechanics too.
It's inaccurate in it's understanding of martial arts and what stats and skills in a game are suppose to actually MEAN. It only makes sense if you see it as imitating rpgs without understanding where they came from in the first place.