Probly cause it’a a novel published on here by the app itself or some company just wanting to make a profit. With easy mistakes like this, if anyone actually cared about the novel and it’s quality, they would have gone back and fixed some of the obvious mistakes.
as of chapter 368 the story is better than most. it is readable. MC isnt very dumb. side characters dont feel like carboard. although there isnt a main story yet to be revealed the scenarios doesnt seem to repeat or be boring. i can rate it as average 3 star