A "wand" is basically just a shorter stick, and a "staff" is a longer one. Modern day remote controls are shaped the way they are because it is convenient. There is no reason, whether for aesthetic or other techno-babble reasons, that a device couldn't look however the creator of it wanted. Right now, you could go out, and with enough skill, create a gun that looks like almost anything. What I'm getting at is it's not the form that matters, it's the function it performs. Heck, even in-game, we have Vahzilok and his science/technology based zombies, then the more traditional ones from the Banished Pantheon. Just as we have magic, tech, mundane, and even some biological-looking mace or sword models, there's no reason we couldn't do the same for this hypothetical staff one...