It does like contrast! Hm, the score change is sufficiently low to be within the error bars I'd say.
I agree that the upped clarity is less beautiful, but it adds a nice touch of sharpness which Keegan likes a lot as well!
The first one looks too blurry to me and the second too sharp; did you try an intermediate one?
https://keegan.regaind.io/p/YLzqGGvuSFOv7PwLl8qC8A
Same image with clarity upped to 100% (horrible, IMHO), 8.6:
https://keegan.regaind.io/p/JbMQUyfBTNuoAWveabPCwg