Well far as I can tell the numbers mean people dont care about it, not that they actively hate it having played it.
Apathy is worse than hatred as people don't care what happens to you... with hatred they might keep track of you. They might react to your actions.
Someone would have to read all the steam reviews and judge sentiment among the PC players to know if they hate it after playing or rejected it without playing. I don't think it did anything really bad to get people to react negatively, I just think most people weren't interested enough to bother.
Steals an image off Brian. I wonder if PS5 users have to prove they have a PS5 or the game before they can vote. As that would be the only way to know if the score is based on people who bought it. We don't know the actual sales figures, its not told to even share holders so we have no hope of knowing for sure. Based on Trophies won, either many copies were purchased as gifts for people who haven't played it yet, or the sales on PS5 might not be very high.
That 665 could be half the people who have played it so far. And as its player count drops, the negative scores may rise as there won't be anyone to play against. They should have put bots in the play against. People could pretend others are there. AI bots that act like players.
They needed a package deal to get people to buy it... something like, buy Concord and get a PS5 free... people might have bought it then. I can't guarantee they play it though.