One very simple thing that could be done to improve accessibility is get rid of the ballista license / have pursuviants/heralds issue them, and just have the license quest be a lore/flavor quest.

This wouldn't result in any kind of dramatic change, but it would make it so anyone could sign up for outdoor matches or reserve the diorama, so it removes one barrier to entry. A lot of people are discouraged from participating by that quest, which takes a pretty significant amount of walking around.