The statement that it's "like a Starship Enterprise" in that screenshot hit on exactly how the system-font-ization looks to me. It feels clinical somehow. It's definitely not a neutral statement—which is usually what people presume a system font should be.

Instead, it feels like something I'd expect to come with a redesign to the OS itself to make it all a bit more brutalist-feeling; maybe something that relies on Gestalt windows-menus-and-pointers less, and a narrative interface like Siri more. A HAL9000 chat-transcript.