Due to several factors, really.
One is due to the game's poor start. Things only picked up from the Prologue Episode 5. It's a point where almost 10% of players couldn't reach, then would drop a review regarding their thoughts.
Another is that the game is anime-ish. There are a lot of anime tropes in the game; dialogues, the way the characters act, and even the characters themselves. Some people don't like this and find it cringe, which is understandable. But I used a Japanese engine for a reason, and I wouldn't want to change this style unless I use a hyper-realistic engine like DAZ.
Then, there's our Main Character - [Kei]. The story mostly does not revolve around him; it revolves around those who are around him. He is nothing but a medium, a pathway to others' growth. He does not have a lot of character development as a main character. He's a good guy, so much so that some call him a pussy(
Yes, there are people in this world that hate peace).
And lastly, due to people who can't distinguish fictional material from reality.
At the end of the day, I'm nothing but a Martian trying to understand how human beings work.