Probably mostly the fact that this was started (according to the website) in 1996 and essentially frozen in 2004, which I believe predates the public announcement of Asymptote.
Does Asymptote get much use these days? I thought it was pretty cool, though a bit hard to wrap my mind around, when I first tried it, but nowadays it seems that attention has moved on to TikZ.
Does Asymptote get much use these days?
Not sure. I use it and it is reguarly updated.
https://asymptote.sourceforge.io/ https://asymptote.sourceforge.io/gallery/2Dgraphs/index.html https://asymptote.sourceforge.io/gallery/3Dgraphs/index.html
> Does Asymptote get much use these days?
Kids who get most of the way through AoPS (typically) end up learning some Asymptote as that is the supported way to draw figures on the AoPS website
A quick search shows a paper on it just a couple of years back:
https://tug.org/TUGboat/tb44-2/tb137hefferon-asymptote.pdf
I found Asymptote interesting, but I'm trying to wrap my mind around METAPOST (and by extension METAFONT) as an easier thing to implement/use.