Seems to me most people are overly critical to the point of having such high standards that nothing is good enough, or at least to the point where people take a manga which is supposed to be, well, nothing more than what it looks like and then people were upset over it. Best example I can think of is Female Knight Who Has Never Been Treated Like a Female. People were all over bashing it because of the fact that the MC was generic, the girl was just meant to be attractive, etc. On some level people look at this shit like everything NEEDS to be perfect or close to perfect, which is kinda funny considering we're all technically reading most of these things illegally anyways.