Why isn't Snarky Puppy on Progarchives?

Jazz-rock and Fusion are surely a great thing; it's what I cut my teeth as a muso on after all (Weather Report). They ought not be considered Prog though. Prog can have implicit jazz-vocabulary (such as the free tonality double sax work in Van der Graaf Generator for example) but not explicitly so because then it becomes something else.
A very tangible distinction can be confirmed in chordal voicings chord sequences and melodic invention (either in composition or extemporization), but perhaps the more essential point is that Prog carries with it a story and a genre of story-telling and, of course, so does Jazz. Another way to look at it is that the one genre is not the proto or evolved version of the other in the way that, for instance, some cathedrals can have a mixture of Gothic styles.

There's a danger in widening definitions and thereby diluting them and, ultimately, doing a disservice to both, imho. Sorry if that sounds like over-thinking the issue!