Hackers at large have moved away from Lisp despite Paul Graham and other evangelists, Linux ate Unix, and there have been several bright subcultures which have no meaningful presence in either edition of the Jargon file. Considering self-professed tribalism of the original authors, it’s hardly surprising.
Hackers also have moved away from academia at large, and 9-5 jobs at tech behemoths are more natural habitats for them, which also shaped the lingo. I mean, there’s a whole layer of slang usually pertinent to outsourcing agencies and to cubicle farms.
It would be interesting to have a compilation of jargon as it evolved through the 1990s and 2000s too.