Because it doesn't align with their personal preferences? Not everyone has the same taste as you plus it's everybody's right whether to rave or criticize anything.
bruh i was genuinely asking because i was curious lol and i just stated my own opinion
Don't take my reply that badly. It's a genuine response on my side too. I like this manhwa (the art and pacing) but there are also others who might not share the same preferences as me. It's also similar to your part, like, it's a good story for you but to others it is a bad and generic story. I do think it's the ML they don't like but idk. So far this is far greater than other plot-related manhwas imo
why some people hating on this? imo this is good for a short story unlike others that's just full of nonsense plot