And more than just the direct expression of the individual martial arts (which are themselves in some sense just the first of many that never got expanded on and because ossified as the only options) a
bo staff is really just one thing, whereas a
staff in a generic sense can be a lot of stuff. A corpsec riot control staff (which is actually a thing). A walking stick turned improvised weapon.
Sindome's creative design really suffers from the design of a lot of things being envisioned for a single very specifically imagined archetype, and weapons are probably the worst example of this. I believe a considerable amount of the popularity of katanas is not even related to their strength but just because a ceramic katana was pretty much one of two cyberpunk-y weapons in the game for the longest time.
If the weapons can't be themed to be more cyberpunk I think they could, in some cases, at least be themed to be a little more generic and thus potentially futuristic if you squint.