Really? Maybe I just have set it up wrong (but I don't think so because others were complaining about this in the Itch forum as well.) For example, if you look at the Vaults here, it has three ratings: https://christianeichhorn.itch.io/the-vaults-of-torment
Two of those are just ratings, one is a review. And I don't think you can see the actual review text anywhere, that's why I manually copied it into the description.
But if there is a way, let me know, I'm not an Itch pro and it doesn't have the most intuitive GUI.