As seen in the stats above, though, this already happens in huge numbers of places. Clearly it’s often the best choice even without this feature. And I’ve seen it time and again as I’m mentoring/tutoring: the name given for a parameter is frequently the best name for a variable that’s going to hold the value to be passed to it. It’s a way for the expertise of the library creator (including the Python stdlib, but also third-party libs) to guide an uncertain novice, and it’s frequently been beneficial - ensuring correct use of terminology, or correct spelling of a word, or anything like that.
IMO this is therefore actually a benefit.