I think the lack of any standing offerings of variations of Quake is a glaring mistake but easily rectified. :)
It's really heartening to see lan gaming continued and offered in such a way that the amount of hassle and setup is minimized and the gaming is maximized. We spent far too much time in the 90's and 2000's dealing with driver issues, etc etc. Bravo.
It is amazing to think how much IPv4 and IPv6 "just work" in comparison.
That said my first LAN party was 1996 and we were running Windows 95 by that point, which probably helped.