One of the criteria for inclusion is:
"The software is the subject of instruction at multiple grade schools,
high schools, universities or post-graduate programs. This criterion
does not apply to software merely used in instruction."
I'd be amazed if pyglet isn't being taught in some CS courses at
university level. Maybe this is the thing to chase down.
The package I write (
www.psychopy.org) is dependent on pyglet and does
have a wikipedia entry that isn't currently debated (it was once
before but that has been resolved). I did write a couple of articles
about it for scientific journals though and the 2nd one explicitly
mentioned its dependence on pyglet:
Peirce JW (2009) Generating stimuli for neuroscience using PsychoPy.
Front. Neuroinform. 2:10. doi:10.3389/neuro.11.010.2008
I would imagine there are other packages have similar dependence and
articles mentioning it. They might also fall foul of mentioning but
not being /about/ pyglet.
I do think having a new release would help to prevent (incorrect)
claims that it's abandonware though. There are plenty of additions and
fixes that could do with being put out there. The fact that they exist
in the repository isn't enough. For example, I have to assume that
PsychoPy's user base only has access to the latest /released/ version,
so I'm stuck at that version.
Jon