You re-awakened a thread after 10 months, where a bug for a different situation (wrapping items were fading) was fixed.
I’m not commenting on the correctness of the UI design here to force the material on 1 line, but the fading is a feature, to tell the user that the line was clipped and not just terminating normally.
The original post here from a year ago was clearly a bug, as the review text was wrapping and fading.