Because it's at the extreme end of the rating system.
That turns the system into "average or better" and various states of bad.
That's a stupid system. It means 4 ratings are completely useless to everyone. They don't really mean anything.
The entire system needs to be junked. It only turns the rating into currency. Where drivers and riders use it to punish each other rather than be honest.
There needs to be only one rating "Bad ride". And it needs to be complicated enough to reach that it can't be done as a reaction. From there, you can devise a rating based on the number of bad ride flags you've gotten compared to the rest of the population.
You do it compared to the population so it can't be done punitively. If everyone is spamming "bad ride", it doesn't matter. The system picks up on it.
