Rating system

Is it me, or does the rating system seem rather redundant when it’s hidden via anonymity?

I pride myself on behind a prompt, clean, and often generous (think tipping) rider/foodie. However, I had a look at my score recently, and it dropped from 5 stars, down to 4.33.

What sucks about this situation is I have no idea as to why. There’s no feedback, no rhyme nor reason to help me determine what that particular driver/or drivers were unhappy about. I know Uber says not to stress about it, but, I can’t help it because I generally try my best to treat drivers with the utmost respect, so, this is a kick in the guts.

Anyone else agree or do I need to get over it?