Yeah, there are several giant dictionaries (variously class to function, string to class, etc.) in just the project I’ve worked on most recently that fit that description.

Though considered from that perspective, it’s actually a bit of a disadvantage that the new match statement is a part of the language. It’s nice to dynamically extend (either as a first party developer or third party user) that sort of dictionary, effectively adding new branches to the implicit switch statement. A match statement is going to be fixed as written. Probably a readability and consistency win to remove spooky-action-at-a-distance, but at the cost of a bit of (ugly, pragmatic) usability