I'd say quite the opposite. jart has been very focused on specific things. While the contribution mentioned looks more butterflying amongst target.

(@0xcafebabe: ADHD high-five, I've got almost the same target list, except I'm playing with their NPUs)

jart unfortunately seems to have had some kind of a mental breakdown involving a hard rightward religious/political pivot around June according to their latest twitter and github activity. They most recently posted a video of the police breaking down their bedroom door. Very sad to see

It does sound rather... cosmopolitan.